GBHackers ranks 12 server security solutions for 2026, naming CrowdStrike and SentinelOne as server EDR leaders and Trend Micro Deep Security top for virtual patching.
The guide scores 12 server security platforms across five weighted criteria, with detection and response depth and Linux parity weighted 25% each. CrowdStrike and SentinelOne lead server EDR, Trend Micro Deep Security is highlighted for virtual patching of unpatchable estates, and Microsoft Defender for Servers is noted for Azure and hybrid economics. It is an editorial assessment comparing features and pricing models rather than a lab test.
2026 CSPM comparison ranks Wiz atop cloud posture tools and recaps Google's pending roughly $32 billion acquisition of Wiz.
An editorial guide rates ten cloud security posture management (CSPM) tools, with Wiz ranked first for agentless visibility and attack-path context, Microsoft Defender for Cloud highlighted for Azure-centric economics, and Palo Alto Prisma Cloud noted for the broadest code-to-cloud module set. The article's biggest market note is Google's agreement to acquire Wiz for approximately $32 billion, described as the largest deal in security history, still progressing through regulatory review. It advises buyers to include roadmap-protection language in multi-year commitments and to press on multicloud neutrality post-close.
CISA added actively exploited Cisco FMC, Chrome V8, Fortinet and Citrix NetScaler flaws to its KEV catalog, ordering federal patching by September 12.
CISA added four actively exploited vulnerabilities to its Known Exploited Vulnerabilities catalog. CVE-2026-20079 (CVSS 10.0) is an unauthenticated authentication bypass in Cisco Secure Firewall Management Center's web interface enabling script execution and potential root access. CVE-2026-87491 (CVSS 8.8) is an out-of-bounds write in Chrome's V8 engine — the seventh actively exploited Chrome zero-day of 2026 — fixed in Chrome 153.0.8010.36. CVE-2025-25249 (CVSS 8.1) is a heap-based buffer overflow in FortiOS/FortiSwitchManager's cw_acd daemon being exploited with the PivotC2 RAT, and CVE-2026-19490 (CVSS 9.3) is a NetScaler SAML HTTP-Redirect authentication bypass; federal agencies must patch by September 12, 2026.
SecurityWeek tallied 33 cybersecurity M&A deals announced in August 2026, headlined by Visa's $2.4B BioCatch buy and Munich Re's $575M At-Bay acquisition.
Thirty-three cybersecurity M&A deals were announced in August 2026. The largest include Visa acquiring fraud-detection firm BioCatch for $2.4 billion in cash and Munich Re buying cyber insurtech At-Bay for $575 million through its HSB unit. Fortinet acquired AI security company Virtue AI, Palo Alto Networks bought agentic workflow platform Console, Cribl acquired AI-native SOC startup Radiant Security, and Deel bought deepfake-detection firm Clarity for a reported $40-50 million. Brinqa, Datavault AI, Echo, and Kiteworks also announced acquisitions.
CISA added actively exploited Fortinet CVE-2025-25249, a critical heap-based buffer overflow in FortiOS, FortiSwitchManager, and FortiSASE, to its KEV catalog.
CVE-2025-25249 is a heap-based buffer overflow (CWE-122/CWE-787) allowing unauthorized code execution by sending specially crafted packets. CISA added it to the Known Exploited Vulnerabilities catalog on September 9, 2026, with a September 12 remediation deadline for federal agencies under BOD 26-04 and mandatory forensic triage of affected environments. Internet-facing Fortinet firewalls and SASE platforms are a likely foothold for credential theft, persistence, and lateral movement; ransomware use is currently listed as unknown.
CISA adds actively exploited Cisco, Citrix, and Fortinet edge-device flaws to KEV catalog, ordering federal agencies to patch by September 12, 2026.
CISA added CVE-2026-20079 (Cisco Secure Firewall Management Center authentication bypass, CVSS 10.0), CVE-2026-19490 (Citrix NetScaler ADC/Gateway authentication bypass, CVSS 9.3), and CVE-2025-25249 (FortiOS heap buffer overflow, CVSS 7.3) to the Known Exploited Vulnerabilities catalog with a September 12, 2026 deadline for FCEB agencies. Cisco confirmed active exploitation of CVE-2026-20079 in August 2026, while Previdian honeypots logged 56 NetScaler exploitation attempts since September 3. SOCRadar attributes Fortinet exploitation to a financially motivated Russian-speaking actor deploying the PivotC2 Node.js RAT, infecting 178 of over 3,000 targeted IP addresses, mostly in the US.
Threat actors exploit Fortinet heap-based buffer overflow CVE-2025-25249 to deploy PivotC2 RAT, infecting 178 devices and exfiltrating data from US targets.
SOCRadar reports exploitation of an unauthenticated remote code execution vulnerability, CVE-2025-25249 (CVSS 7.4), patched in January in FortiOS and FortiSwitchManager. Attackers scanned over 30,000 IP addresses, infected 178 devices with PivotC2 RAT, and at least two intrusions resulted in data exfiltration, primarily targeting US entities. SOCRadar attributes attacks to a likely Russian-speaking cybercrime actor and suggests the RAT was AI-assisted, in use since July 2026. CISA added the CVE to the KEV catalog with a three-day BOD 26-04 patch deadline for federal agencies.
CISA added Fortinet CVE-2025-25249, a heap-based buffer overflow in the cw_acd daemon, to its KEV catalog; Canadian Cyber Centre urges patching.
The Canadian Centre for Cyber Security updated advisory AV26-023, which relays January 2026 Fortinet advisories covering FortiFone, FortiOS, FortiSASE, FortiSIEM, and FortiSwitchManager. On September 9, 2026, CISA added CVE-2025-25249, a heap-based buffer overflow in the cw_acd daemon, to its Known Exploited Vulnerabilities catalog. Related Fortinet flaws include unauthenticated local configuration access (CVE-2025-47855) and unauthenticated remote command injection (CVE-2025-64155). Administrators should review the advisories and apply available updates.
Fortinet patched 10 vulnerabilities including two critical authentication flaws, CVE-2026-84390 (CVSS 9.6) and CVE-2026-84388 (CVSS 9.1), in FortiMonitorOnSight and the FortiPAM Chrome extension.
Fortinet's September patch release fixes CVE-2026-84390, a sensitive-information issue in the FortiMonitorOnSight web portal that lets unauthenticated attackers bypass authentication with forged or reused JWTs. CVE-2026-84388 is an improper authentication flaw in the Fortinet Privileged Access Agent Chrome extension that can allow attackers to proxy a user's browser traffic via a malicious website, requiring upgrades to both FortiPAM 1.9.1/1.8.4 and extension 8.0.1.123+. High-severity information disclosure in FortiSandbox (CVE-2026-26084) and man-in-the-middle risk in the FortiOS/FortiProxy Agentless ZTNA portal (CVE-2026-84393) were also fixed, alongside medium/low issues across FortiManager, FortiAnalyzer, FortiSOAR, FortiClient, FortiSIEM and others. Fortinet did not indicate any of the flaws are being exploited in the wild.
Canadian Cyber Centre advisory AV26-898 flags Fortinet vulnerabilities across FortiOS, FortiProxy, FortiPAM, FortiSandbox and FortiMonitorOnSight, urging administrators to apply updates
The Canadian Centre for Cyber Security relayed Fortinet PSIRT advisories (AV26-898) listing vulnerabilities affecting FortiOS 7.6.1-7.6.6, FortiProxy 7.6.2-7.6.6, FortiPAM Chrome extensions 7.4/8.0, FortiSandbox 4.4 and 5.0, FortiSandbox Cloud and PaaS 5.0.4-5.0.5, and FortiMonitorOnSight 7.2. The bulletin does not detail individual CVEs or exploitation. Administrators and users are encouraged to review the linked Fortinet advisories and apply the necessary updates.
Fortinet patched CVE-2026-84388 (CVSS 9.1) in its FortiPAM Chrome extension, letting malicious websites alter proxy settings, open tabs and record sessions.
The Fortinet FortiPAM Chrome extension flaw (CVE-2026-84388, CVSS 9.1) lets attacker-controlled domains be trusted as FortiPAM servers because a webRequest listener adds requested hostnames without verifying the initiator. A second issue exposes the extension's message interface to all URLs and accepts non-JWT tokens without validation, enabling unauthenticated session launches, proxy manipulation, tab control and recording; the consent dialog can also be bypassed via shadow-root clicks. Fortinet issued advisory FG-IR-26-168 after a July 17 report and released a fix on August 1, 2026, with no confirmed exploitation in the wild.
Iran-linked Mirage Kitten targets software engineers with fake LinkedIn recruiter coding tests deploying new NodeRabbit and PollCat RATs.
Kaspersky researchers link the campaign to Mirage Kitten (also tracked as UNC1549, Smoke Sandstorm, Nimbus Manticore), with victims in aviation, aerospace and fintech in Egypt, Ethiopia and Afghanistan. Trojanized npm dependencies (colorized_terminal, pretty-log) bundled in coding-challenge archives launch the Node.js implants across Windows, Linux and macOS. NodeRabbit uses AES-256-GCM-encrypted C2 via Azure, and its third variant persists through a fake GitHub Copilot Helper VS Code extension plus Git post-merge/post-checkout hooks. PollCat is an obfuscated JavaScript RAT that registers with C2 before OTP authentication and inventories tools from 24 security vendors.
CISA added four actively exploited vulnerabilities—Fortinet buffer overflow, Citrix NetScaler and Cisco auth bypasses, and a Chromium V8 write—to the KEV Catalog.
CISA added CVE-2025-25249 (Fortinet heap-based buffer overflow), CVE-2026-19490 (Citrix NetScaler authentication bypass), CVE-2026-87491 (Google Chromium V8 out-of-bounds write), and CVE-2026-20079 (Cisco Firewall Management Center authentication bypass) to its Known Exploited Vulnerabilities Catalog based on evidence of active exploitation. Under Binding Operational Directive 26-04, Federal Civilian Executive Branch agencies must prioritize rapid remediation of these high-risk vulnerabilities on exposed assets and verify whether systems were compromised before patching. CISA encourages all organizations to adopt risk-based vulnerability management and prioritize KEV Catalog remediation.
SOCRadar says attackers exploit FortiGate CVE-2025-25249 to deploy the PivotC2 Node.js RAT, compromising 178 of 30,000 targeted devices and stealing credentials.
SOCRadar's Threat Research Unit reports active exploitation of CVE-2025-25249, a CVSS 9.8 heap-based buffer overflow in the cw_acd daemon of FortiOS and FortiSwitchManager, via crafted CAPWAP requests to UDP port 5246, compromising at least 178 of 30,000 targeted internet-exposed FortiGate devices since July 2026. The campaign deploys PivotC2, a Node.js RAT that provides interactive shells, SOCKS5/HTTP proxying, port forwarding, network scanning, and automated configuration harvesting that decrypts stored FortiGate credentials, including VPN pre-shared keys, SSL-VPN credentials, and LDAP secrets. Russian-language artifacts, AD enumeration, browser credential theft, RDP enablement, and exfiltration of Exchange .pst files to Wasabi S3 point to a Russian-speaking, financially motivated group; two US organizations confirmed full-network intrusions. Fixes include FortiOS 7.6.4/7.4.9/7.2.12/7.0.18+ and FortiSwitchManager 7.2.7/7.0.6+, plus blocking CAPWAP on internet-facing interfaces.
A comparison of twelve managed XDR providers covering pricing models, telemetry breadth, and distinguishing genuine MXDR from rebranded MDR services.
The article compares twelve managed XDR providers including Bitdefender, CrowdStrike, Palo Alto Unit 42, Trend Micro, Fortinet, Secureworks Taegis, Stellar Cyber, Ontinue, and ReliaQuest, highlighting pricing models and telemetry breadth. It explains that genuine MXDR must actively monitor identity, cloud, and email telemetry rather than merely ingest it, and typically costs 30-60% more than endpoint-only MDR. It also notes Sophos completed its approximately $859 million acquisition of Secureworks in February 2025.
Fortinet fixed CVE-2026-26084, an unauthenticated access-control flaw in FortiSandbox GUI rated 8.9 CVSS, with no known exploitation yet.
Fortinet disclosed CVE-2026-26084 (advisory FG-IR-26-166), a CWE-284 improper access control flaw in the GUI of FortiSandbox, FortiSandbox Cloud and FortiSandbox PaaS, rated 8.9 CVSS v3.1. An unauthenticated remote attacker can send specially crafted HTTP requests to control NAT rules and expose sensitive information. Affected versions include FortiSandbox 4.4.0-4.4.8 and 5.0.0-5.0.5 (plus Cloud/PaaS 5.0.4-5.0.5), fixed in 4.4.9 and 5.0.6. Fortinet researcher Adham El Karn found the flaw internally and the September 8 advisory reports no known exploitation.
ZDI publishes ZDI-26-645 for CVE-2026-84387, an authenticated command injection RCE in Fortinet FortiSandbox via crontab backup, rated CVSS 7.2.
Zero Day Initiative published advisory ZDI-26-645 describing a command injection flaw in Fortinet FortiSandbox's write_remote_backup_to_crontab function. Remote authenticated attackers can execute arbitrary code through the cronValue parameter. ZDI rated the issue CVSS 7.2 and assigned CVE-2026-84387.
Fortinet disclosed CVE-2026-26084 (CVSS 8.9), an unauthenticated information-disclosure flaw in the FortiSandbox web UI, urging upgrades.
Fortinet patched CVE-2026-26084, a CWE-284 improper access control flaw in the shared web UI of FortiSandbox, FortiSandbox Cloud, and FortiSandbox PaaS that lets unauthenticated attackers read sensitive data via crafted HTTP requests. Affected releases include FortiSandbox 5.0.0-5.0.5 and 4.4.0-4.4.8, Cloud 5.0.4-5.0.5, and PaaS 5.0.4-5.0.5; fixes arrive in 5.0.6+ and 4.4.9+, while FortiSandbox 5.2 and Cloud 4.4 are unaffected. The issue was found internally by Fortinet's Product Security team, and the company reports no evidence of exploitation in the wild. Disclosure carries only confidentiality impact, but exposed sandbox configurations and logs could aid follow-on attacks.
GBHackers compares 12 managed firewall service providers, naming Fortinet best value and Secureworks best detection while flagging recent ownership changes.
The buyer's guide evaluates 12 managed firewall/MSSP providers across cost tiers, contract terms, and service models. Fortinet is rated best value, Secureworks best detection, NTT Data best global reach, and Cato Networks best for organizations wanting to stop owning firewalls. The article highlights that Secureworks was acquired by Sophos for roughly $859 million in February 2025, the Trustwave-Cybereason merger was terminated in March 2025, LevelBlue is the rebranded AT&T Cybersecurity business, and Comcast Business absorbed Masergy.
Attackers exploiting CVE-2025-25249 in Fortinet FortiGate firewalls deploy PivotC2, a post-exploitation RAT, on exposed edge devices.
SOCRadar reports that exploitation of CVE-2025-25249 is being used to deploy PivotC2, a purpose-built post-exploitation RAT, on FortiGate firewall appliances. The attack follows the common pattern of compromising public-facing edge devices such as VPNs, routers, and firewalls as the initial entry point. Defenders running FortiGate appliances should prioritize patching and watch for post-exploitation activity indicating RAT deployment.
Cyble's Qatar Threat Landscape Report 2025-26 finds Qilin dominated local ransomware while access brokers concentrated on Qatari BFSI and retail access sales.
Cyble's Qatar Threat Landscape Report 2025-26 describes a concentrated threat environment where Qilin accounted for essentially all observed ransomware activity in the country in 2025, including an October campaign, with The Gentleman, Everest, Crypto24, and Payload sharing the space in 2026. Access brokers are selling compromised access, with BFSI and retail accounting for more than half of underground listings, while the education sector sees the most breach and leak incidents. Exploitation activity surged for enterprise remote-access products from Microsoft, Fortinet, Ivanti, and Citrix. The report was published ahead of the CYSEC Qatar summit and cites Qatar's data privacy law and National Cyber Security Agency initiatives.
Group-IB details BraZetsu, a modular Python Windows malware that monetizes compromised-host access through the Infected Marketplace for initial access brokers.
Group-IB attributes BraZetsu to the Exilware threat actor, believed to be native Portuguese speakers targeting Iberian and Latin American e-commerce, financial, industrial, and law enforcement victims. The framework, first observed in early May 2026, uses generative AI for data triage and target prioritization, steals browser histories and digital certificates, and hunts Brazilian CNAB financial remittance files. Access to compromised hosts is sold on the Infected Marketplace from roughly $5.80, letting buyers remotely deploy secondary payloads over WebSocket-linked infrastructure. Some samples evaded detection on VirusTotal; delivery likely uses VBS loaders from a domain also used to distribute the Ousaban banking trojan.
FBI and Lumen disrupted QTFY's QScan and QTRouter botnet platforms used by Chinese state-sponsored hackers to conceal intrusions into U.S. agencies.
The U.S. DoJ announced court-authorized seizure of domains behind QScan and QTRouter, operated by the Chinese state-sponsored group QTFY and employed by Nanjing Xinjiuwei Network Technology Company. QTFY has been active since May 2018 and targeted NASA, the Federal Reserve, the Department of Energy, DoJ, HHS, NIH, the U.S. Senate, and academic institutions. QScan exploits vulnerable IoT devices, feeding them into QTRouter, an OpenWrt-based proxy obfuscation network likened to an operational relay box (ORB) that masks attack origins. The group exploited zero-days such as Ivanti CSA flaws CVE-2024-8190, CVE-2024-8963, and CVE-2024-9380, plus numerous N-days, and maintained persistence with RATs, web shells, and legitimate credentials.
Op-ed argues the 200-company Collective Cyber Defense letter's three endorsed metrics should become standard vendor procurement questions.
More than 200 companies including Microsoft, Google, AWS, CrowdStrike, Anthropic and Okta signed an August 27 open letter calling for faster cyber defenses against AI-enabled attacks. The letter endorses three measurable metrics: coverage, containment speed, and verified remediation. The author turns those into five concrete procurement questions buyers should pose at vendor renewals, while noting the letter contains no deadlines, dollar figures or measurable targets.
White House launches Watershed 250, a six-month Texas pilot using volunteer vendor cyber and AI tools to harden water utility defenses.
The Office of the National Cyber Director and Texas Cyber Command will oversee the six-month Project Watershed 250 pilot to improve water sector cybersecurity through industry-donated red teaming, system hardening and AI tooling. Twelve companies including Microsoft, Fortinet, Google Cloud, Palo Alto Networks, AWS, Cloudflare, Zscaler, Forescout, Abnormal AI and Dragos participated in the rollout. Officials cited recent attacks including an Iranian-backed campaign against 30 water systems in 12 states and a 2024 incident in Muleshoe, Texas. Some water-security professionals criticized the program as lacking dedicated funding.
FBI and DOJ seized QTFY infrastructure, disrupting a Chinese state-sponsored group that compromised federal agencies and critical infrastructure since 2018.
Authorities seized three domains powering QScan and QTRouter, the hacking suite of QTFY, a Chinese government-funded group operating through front company Nanjing Xinjiuwei Network Technology. Targets include the Departments of Energy, Justice, and Health and Human Services, the Federal Reserve, NASA, NIH, financial institutions, defense contractors, utilities, telecoms, and hospitals; the group exploited zero-days in Ivanti, Pulse Secure, Fortinet, Citrix, and others, intruding three DOE national labs in September 2024. QScan carried over 200 proof-of-concept exploits and processed more than two million scanning tasks in a single day in 2024.
FBI seizes China-linked QScan and QTRouter hacking platforms used by QTFY to obfuscate intrusions against US federal agencies.
The DOJ and FBI seized domains hard-coded into QScan and QTRouter, two platforms operated by China-based Nanjing Xinjiuwei Network Technology Company on behalf of state-sponsored group QTFY. QScan automatically infected thousands of IoT devices which were added to QTRouter, an obfuscation network routing malicious traffic through compromised and proxy devices outside China. Targets included NASA, the Federal Reserve, Departments of Energy, Justice, and HHS, NIH, and the US Senate, exploiting flaws in Fortinet SSL-VPN, Citrix ADC, Microsoft Exchange, F5 BIG-IP, Log4j, and others.
Joint Tenable-SentinelOne analysis of 93 CVE-actor attribution pairs shows nation-state and criminal groups independently converge on the same edge infrastructure.
Tenable and SentinelOne jointly analyzed 93 CVE-actor attribution pairs covering exploitation of perimeter devices. The data shows state-sponsored and financially motivated actors independently target the same edge products from Ivanti, Fortinet, and Palo Alto Networks. The findings challenge the narrative that edge exploitation is exclusively a China-nexus nation-state problem, showing a broader shared attack surface.
ESET details the Gentlemen ransomware gang's in-house GentleKiller EDR-killer framework targeting over 400 security processes across 48 products, supplied to affiliates.
ESET analyzed the Gentlemen ransomware gang's in-house GentleKiller EDR-killer framework, confirmed through an internal data leak from May 2026. The framework has at least eight variants impersonating legitimate security products and abusing vulnerable or malicious kernel drivers, targeting more than 400 process names across 48 security products. Gentlemen emerged in late 2025, became one of the five most active ransomware gangs in Q1 2026, offers affiliates a 90% ransom share, and practices double extortion using Go-based and C-based ESXi encryptors. The suite also reuses outside tools including HexKiller, ThrottleBlood, and HavocKiller, unified by a shared evasion layer that mimics well-known security vendors.
FBI, CISA, and HHS warn Medusa ransomware has hit over 500 organizations across critical infrastructure since June 2021, using phishing and unpatched flaws.
An updated joint advisory from CISA, FBI, and HHS states Medusa ransomware has affected more than 500 organizations, spanning healthcare, defense, manufacturing, government, IT, financial services, education, insurance, and legal sectors. Since early 2023 Medusa has operated a ransomware-as-a-service affiliate model and buys access from initial access brokers for $100 to $1 million. Affiliates gain entry via phishing and unpatched internet-facing software, exploiting newly disclosed flaws in ScreenConnect, Fortinet EMS, Fortra GoAnywhere, and BeyondTrust within 24 hours. The group runs double extortion, giving victims 48 hours before leak-site publication, with $10,000 in cryptocurrency buying a one-day delay.
FortiGuard Labs disclosed Evooo1Bot, a Mirai-based Linux botnet active since July 2026 that hijacks routers and IoT devices for DDoS, credential theft, and SOCKS5 proxying.
Fortinet's FortiGuard Labs disclosed Evooo1Bot, a previously undocumented Linux botnet active since July 2026 that reuses Mirai's DDoS engine while adding encrypted C2, SSH brute-force scanning, credential sniffing, and SOCKS5 proxy modules. The bot exploits 18 known CVEs across Alcatel, NETGEAR, Tenda, D-Link, Telesquare, and Mitsubishi devices, some dating back to 2007, and communicates exclusively over port 443 to blend with HTTPS traffic. Compromised hosts can be turned into SOCKS5 relays for anonymous traffic forwarding or monetization via proxy services. The malware uses AES-256-CTR, ChaCha20, and XOR obfuscation with a 28-command administration interface.
Fortinet researchers documented Evooo1Bot, a new Mirai-derived Linux botnet active since July 2026 that exploits known edge-device flaws to build SOCKS5 proxy networks.
Fortinet FortiGuard Labs identified Evooo1Bot, a previously undocumented Linux botnet built on the leaked Mirai source code, active in the wild since July 2026 and targeting internet-facing edge devices. It exploits numerous known CVEs in routers and devices from D-Link, Tenda, Telesquare, Zyxel, Hikvision, Atlassian Confluence, WSO2, TP-Link, NETGEAR, and others, delivering a bot binary via a wget.sh loader from 91.92.40.118 that clears bash history. The bot offers encrypted C2 on port 443, SSH brute-force scanning, credential sniffing, DDoS over DNS/TCP/UDP, an HTTP exploit dispatcher, and converts infected hosts into SOCKS5 proxies for anonymizing follow-on operations.
Fortinet acquired Virtue AI to add agent red-teaming, MCP scanning and runtime guardrails to its AI security portfolio.
Fortinet acquired Virtue AI to extend its Security for AI strategy beyond FortiAIGate, which protects LLMs from prompt injection, data leakage and model poisoning. Virtue AI brings automated agentic red-teaming across 50+ sandboxed environments and 14 domains, agent discovery and governance including MCP tool scanning, continuous AI validation, and real-time guardrails across text, images, video, audio and code. Financial terms were not disclosed and the consideration is immaterial to Fortinet; Gartner projects the AI security market to grow from $2.8B in 2026 to $16.4B by 2030.
Fortinet has confirmed a critical zero-day vulnerability; the available headline provides no product, CVE, or exploitation details.
Infosecurity Magazine's headline states that Fortinet has confirmed a critical zero-day vulnerability. The available source text contains no additional details on affected products, CVE identifiers, exploitation status, or available fixes. Defenders should treat specifics as unconfirmed pending a vendor advisory.
Ransomware operators are exploiting a Fortinet vulnerability, per the Infosecurity Magazine headline; article details unavailable.
Infosecurity Magazine's headline indicates ransomware activity tied to a Fortinet vulnerability. The article body was not available, so the specific CVE, affected versions and victim details are unconfirmed.
FortiGuard Labs reports new Mirai-derived botnet Evooo1Bot actively exploits unpatched routers and edge devices, adding encrypted C2, stealthy SSH scanning, and proxying.
FortiGuard Labs has identified Evooo1Bot, a previously undocumented Linux malware based on the Mirai botnet code, which has been actively exploiting unpatched vulnerabilities in internet-facing hardware for at least a month. Targeted devices include routers and edge hardware from Alcatel, D-Link, Mitsubishi Electric, Netgear, Tenda and Telesquare, with telemetry showing activity in North and South America, Europe, India, China and Japan. Beyond Mirai's usual DDoS functions, the variant adds encrypted C2 communications, a honeypot-aware SSH scanner, a sniffer for unchanged default credentials, and abuse of the SOCKS protocol to turn compromised devices into persistent proxies for concealing origin and pivoting into internal networks.
US and Korean agencies warn Gunra ransomware actors exploit Fortinet flaws and stealthily exfiltrate large data volumes, targeting critical infrastructure.
US and Korean authorities warned that Gunra ransomware actors exploit Fortinet vulnerabilities to gain access and use stealthy techniques to exfiltrate vast volumes of data, including from Microsoft services. The group is targeting critical infrastructure organizations. Defenders should prioritize Fortinet patching and watch for large, quiet data egress.
CISA, FBI, and South Korean agencies warn Gunra ransomware, with 51 victims since April 2025, exploits Fortinet flaws for double-extortion attacks on critical infrastructure.
CISA, the FBI, and South Korean agencies warned of Gunra ransomware attacks targeting healthcare, financial services, government, and professional services worldwide. The Conti-derived operation exploits internet-facing Fortinet FortiOS and FortiProxy flaws CVE-2024-55591 and CVE-2025-24472 for initial access, then deploys double extortion with Salsa20/ChaCha20 encryption and publishes non-payers on a leak site within five to seven days. Ransomware.Live lists 51 victims since April 2025, mostly in South Korea, Brazil, Spain, Thailand, and Hong Kong. The group uses Impacket tools for SMB lateral movement and NTDS credential dumping, tampers with VDI authentication to accept a designated OTP value to bypass MFA, and launched a RaaS affiliate program in January 2026 under the new alias Golden Community.
FortiOS explicit proxy WAD daemon stack buffer overflow (CVSS 5.1) allows code execution only with Kerberos and SOCKS configured.
Fortinet advisory FG-IR-26-161 describes a stack-based buffer overflow (CWE-121) in the WAD daemon of FortiOS explicit proxy, scored CVSSv3 5.1. Exploitation requires an attacker able to bypass stack protection and ASLR, and the explicit proxy must be configured with Kerberos authentication and SOCKS enabled. If successful, it yields arbitrary code or command execution in the WAD daemon context via crafted sockets. No exploitation is reported in the advisory.
Fortinet discloses a low-severity SSRF in the FortiSIEM GUI allowing authenticated attackers to send requests from targeted devices.
Fortinet PSIRT advisory FG-IR-26-159, revised 2026-08-12, describes a server-side request forgery (CWE-918) in the FortiSIEM GUI, scored CVSSv3 3.4. An authenticated attacker can send HTTP requests originating from the targeted device via specially crafted requests, potentially enabling internal network probing. No CVE identifier or exploitation status is included in the advisory text.
Heap-Based Buffer Overflow in Fortinet FortiOS, FortiSwitchManager, and FortiSASE
CVE-2025-25249 is a heap-based buffer overflow (CWE-122/CWE-787) in Fortinet FortiOS, FortiSwitchManager, and FortiSASE that allows an attacker to execute unauthorized code or commands. It is triggered by sending specially crafted packets to an affected device, causing an out-of-bounds write in heap memory that can be leveraged for code execution. Successful exploitation gives attackers command execution on the appliance; in observed intrusions against FortiGate firewalls, attackers have deployed custom Node.js malware and a post-exploitation RAT dubbed PivotC2. Any organization running the affected Fortinet products is at risk, with internet-facing FortiGate firewalls the primary concern. The flaw was added to CISA's KEV on 2026-09-09, confirming active exploitation in the wild (ransomware use unknown); no public PoC is known.
· Fortinet FortiOS · Fortinet FortiSwitchManager KEV PoC mass
Authentication bypass to root access in Cisco Secure Firewall Management Center
CVE-2026-20079 is an authentication bypass (CWE-288) in the web interface of Cisco Secure Firewall Management Center (FMC) Software, caused by an improper system process created at boot time. An unauthenticated, remote attacker can exploit it by sending crafted HTTP requests to the FMC web interface, which allows the execution of script files and commands on the device. A successful exploit grants the attacker root access to the underlying operating system, giving full control of the management platform (CVSS 3.1: 10.0, network-exploitable, no privileges or user interaction required, scope changed). The flaw affects Cisco Secure Firewall Management Center (FMC) and Security Cloud Control (SCC) Firewall Management deployments. Cisco has confirmed the vulnerability is being exploited in active attacks, it carries a 35.9% EPSS score (98th percentile), and CISA added it to the Known Exploited Vulnerabilities catalog on 2026-09-09.
Remote Authentication Bypass in Citrix NetScaler ADC and NetScaler Gateway
Citrix NetScaler ADC and NetScaler Gateway contain an authentication-bypass vulnerability (CWE-288, 'using an alternate path or channel') that an unauthenticated remote threat actor can exploit. The flaw is triggerable when the appliance is configured as an AAA virtual server or as a Gateway, including SSL VPN, ICA Proxy, CVPN, or RDP Proxy deployments, allowing the attacker to bypass authentication without valid credentials. A successful bypass could give an attacker access to VPN-protected or AAA-gated resources as an authenticated user; no CVSS score has been published yet. Organizations running affected NetScaler appliances in these configurations are exposed, and affected version ranges are not specified in the available data, so defenders should consult Citrix advisory AL26-019. The flaw was added to CISA's KEV on 2026-09-09, indicating exploitation in the wild; ransomware use is unknown, no public PoC is known, and EPSS assigns a 3.4% probability of exploitation within 30 days (88th percentile).
· Citrix NetScaler ADC and NetScaler Gateway KEV PoC large
Improper Access Control in Fortinet FortiSandbox Exposes Sensitive Data
CVE-2026-26084 is an improper access control flaw (CWE-284) in the web interface of Fortinet's FortiSandbox threat-analysis product line, affecting on-premises 4.4.x and 5.0.x releases as well as the FortiSandbox Cloud and PaaS offerings. An unauthenticated attacker can trigger it remotely by sending crafted HTTP requests to the affected FortiSandbox web service, bypassing access controls without needing credentials or user interaction. A successful attacker gains access to sensitive information handled by the appliance; Fortinet's critical 9.9 CVSS score also reflects a scope change with a high availability-impact component, so defenders should treat the practical impact as potentially broader than simple information disclosure. Any organization running affected versions of FortiSandbox, FortiSandbox Cloud, or FortiSandbox PaaS is in scope, though the product's enterprise appliance/cloud deployment model means the affected population is far smaller than endpoint or firewall software. There is no evidence of exploitation so far: the flaw is not in CISA KEV, has no known public proof-of-concept, and EPSS assigns roughly a 0.2% probability of exploitation within 30 days.
· Fortinet FortiSandbox 5.0.0 through 5.0.5 · Fortinet FortiSandbox 4.4.0 through 4.4.8moderate
Unauthenticated Buffer Overflow in D-Link GO-RT-AC750 Router Firmware
CVE-2022-37055 is a buffer overflow (CWE-120) in the cgibin binary's hnap_main handler on D-Link GO-RT-AC750 routers running GORTAC750_revA_v101b03 or GO-RT-AC750_revB_FWv200b02 firmware. Because the flaw sits in the router's HNAP/web management interface and requires no authentication, a remote attacker can trigger it with crafted network requests sent directly to the device. Successful exploitation can corrupt memory and is scored critical (CVSS 3.1: 9.8), giving the attacker potential full control of the router with high confidentiality, integrity, and availability impact. Owners of these specific GO-RT-AC750 (rev A and rev B) firmware releases are affected, and the broader context of active Mirai-family botnet campaigns targeting Linux-based edge devices raises the risk of automated mass exploitation. CISA added the vulnerability to the Known Exploited Vulnerabilities catalog on 2025-12-08, confirming exploitation in the wild, and its EPSS of 55.5% (99th percentile) indicates a high near-term probability of exploitation.
· D-Link GO-RT-AC750 (rev A) router firmware GORTAC750_revA_v101b03 · D-Link GO-RT-AC750 (rev B) router firmware GO-RT-AC750_revB_FWv200b02 KEV PoC large
Unauthenticated Command Injection in Tenda AC7, AC9, and AC10 Routers
CVE-2018-14558 is an unauthenticated OS command injection flaw (CWE-78) in the web interface of Tenda AC7, AC9, and AC10 routers, where the formsetUsbUnload handler passes untrusted input to the dosystemCmd function. An attacker triggers it by sending a crafted HTTP request to the goform/setUsbUnload endpoint, requiring no authentication or user interaction per the CVSS vector (AV:N/AC:L/PR:N/UI:N). Successful exploitation yields arbitrary command execution on the router, enabling full device takeover for traffic interception, botnet enrollment, or pivoting into the local network. Anyone running AC7 firmware through V15.03.06.44_CN(AC7), AC9 firmware through V15.03.05.19(6318)_CN(AC9), or AC10 firmware through V15.03.06.23_CN(AC10) is affected. The flaw has a public proof of concept, an 8.7% EPSS (95th percentile), and was added to CISA's Known Exploited Vulnerabilities catalog on 2021-11-03, indicating exploitation in the wild.
· Tenda AC7 router firmware through V15.03.06.44_CN(AC7) · Tenda AC9 router firmware through V15.03.05.19(6318)_CN(AC9) KEV PoC mass
Actively Exploited Out-of-Bounds Write in Google Chrome V8
CVE-2026-87491 is an out-of-bounds write (CWE-787) in the V8 JavaScript engine in Google Chrome, fixed in Chrome 153.0.8010.36, which Google shipped alongside roughly 230 other security fixes. An attacker can trigger the flaw remotely by luring a user (user interaction required) into opening a crafted HTML page that corrupts memory in V8. Successful exploitation allows the attacker to execute arbitrary code inside the Chrome browser sandbox, which constrains but does not eliminate the impact. All Google Chrome users running versions prior to 153.0.8010.36 are affected; because the flaw resides in V8, CISA tracks it as 'Google Chromium V8', and other Chromium-based browsers may inherit the fix in their own updates. The flaw is being actively exploited in the wild — it is the seventh actively exploited Chrome zero-day of 2026 and was added to CISA's KEV catalog on 2026-09-09 — though no public proof-of-concept is known and ransomware use is unknown.
· Google Chrome (V8 JavaScript engine; tracked by CISA as 'Google Chromium V8') prior to 153.0.8010.36 KEVmass
Command Injection RCE in Alcatel OmniPCX Enterprise masterCGI
CVE-2007-3010 is a command execution flaw in masterCGI, a component of the Unified Maintenance Tool in the Alcatel OmniPCX Enterprise Communication Server. Because the CGI fails to properly validate user-supplied input (CWE-20), a remote attacker can send crafted requests to the web-based maintenance interface and inject arbitrary operating system commands, which are executed on the PBX server. Successful exploitation yields remote code execution on the communication server, giving attackers a foothold on a Linux-based edge device that could be used for further compromise, lateral movement into the voice network, or, per recent botnet trends, conscription into proxy botnets. Any organization running an Alcatel OmniPCX Enterprise communication server with the Unified Maintenance Tool reachable is affected. The flaw is listed in CISA's Known Exploited Vulnerabilities catalog (added 2022-04-15) with a very high 97.4% EPSS score, indicating active in-the-wild exploitation, though no public proof-of-concept code is known.
· Alcatel OmniPCX Enterprise Communication Server (Unified Maintenance Tool / masterCGI) KEVmoderate
Telesquare SDT-CW3B1 1.1.0 is affected by an OS command injection vulnerability that allows a remote attacker to execute OS commands without any authentication.
Telesquare SDT-CW3B1 1.1.0 is affected by an OS command injection vulnerability that allows a remote attacker to execute OS commands without any authentication.
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