Search: “NetSupport”

AL26-019 - Vulnerabilities impacting Citrix NetScaler ADC and NetScaler Gateway - CVE-2026-19490 and CVE-2026-19489

Canadian Cyber Centre alerts on Citrix NetScaler ADC/Gateway flaws CVE-2026-19490 (authentication bypass) and CVE-2026-19489 (buffer overflow), urging emergency patching.

The Canadian Centre for Cyber Security issued alert AL26-019 covering two Citrix NetScaler vulnerabilities disclosed in a vendor advisory on August 19, 2026. CVE-2026-19490 (CWE-288) allows a remote unauthenticated attacker to bypass authentication on appliances configured as a Gateway for SSL VPN, ICA Proxy, CVPN, RDP Proxy, or as an AAA virtual server. CVE-2026-19489 (CWE-120) is a classic buffer overflow that may cause memory overflow, unpredictable behavior, or denial-of-service conditions. Affected appliances are vulnerable when configured as a SAML IdP; fixed versions include 14.1-73.32, 13.1-63.21, and 13.1-37.277 for FIPS.

Canadian Centre for Cyber Security·Sep 4, 19:00 UTC · 11d agoAdvisory 3 sourcesCVE-2026-19490CVE-2026-19489

Critical NetScaler Vulnerability Exploited in Attacks

CISA added critical Citrix NetScaler flaw CVE-2026-19490 (CVSS 9.3) to its KEV catalog after confirming exploitation of gateway and AAA virtual servers in the wild.

CISA warned that threat actors are exploiting CVE-2026-19490, a critical-severity flaw (CVSS 9.3) affecting NetScaler ADC and NetScaler Gateway appliances configured as a gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server. Citrix patched the bug on August 19, and Rapid7 warned it is remotely exploitable without authentication. Sensor data from Previdian shows exploitation ongoing since at least September 3, one day after a public exploit appeared on GitHub, with matching requests observed from three IPs across three countries. CISA added the flaw to its Known Exploited Vulnerabilities catalog, giving federal agencies three days to patch under BOD 26-04.

SecurityWeek·updated Sep 10, 18:57 UTC · 5d ago·first Sep 10, 12:20 UTC · 5d agoExploit / PoC in the wild 5 sourcesCVE-2026-194902· 2 reads

Cortex XDR™ Detects New Phishing Campaign Installing NetSupport Manager RAT

Cortex XDR threat hunters uncovered a phishing campaign delivering the NetSupport Manager RAT via a fake password-protected NortonLifelock Word document.

Unit 42 identified a January 2020 phishing campaign using a Microsoft Word document disguised as a password-protected NortonLifelock file. Enabling macros triggered an obfuscated command that built alpaca.bat in the temp directory, which used msiexec to download an MSI payload from quickwaysignstx.com, filtered on the Windows Installer user-agent string. The payload installed a PowerShell script and the campaign, which has delivered NetSupport Manager RAT since at least 2018, showed related activity dating back to early November 2019.

Palo Alto Unit 42·Aug 17, 13:18 UTC · 29d agoPhishing & fraud in the wild1

Critical NetScaler Flaw Can Bypass Authentication on Certain Gateway and AAA Servers

Citrix patches critical NetScaler Gateway and AAA authentication bypass CVE-2026-19490 (CVSS 9.3) plus a SIP ALG memory overflow flaw; exploitation attempts observed.

Citrix fixed CVE-2026-19490 (CVSS 9.3), an authentication bypass affecting customer-managed NetScaler ADC and Gateway appliances configured as Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA virtual servers, and CVE-2026-19489 (CVSS 8.8), a memory overflow causing DoS when SIP ALG is enabled in Large Scale NAT groups. Updates are available in versions 14.1-73.32, 13.1-63.21, and corresponding FIPS/NDcPP builds, while Citrix-managed cloud services were already patched. The flaws were reported by Samarth Vashisht of JPMorgan Chase's penetration-testing team, and Previdian later observed 10 exploitation attempts against CVE-2026-19490 from six unique IP addresses in Australia, Germany, Japan, and the US, with no confirmed compromise.

The Hacker News·Sep 4, 17:00 UTC · 11d agoVulnerability in the wildCVE-2026-19489CVE-2026-19490CVE-2026-8451

ClearFake WebDAV infection chain delivers Amatera stealer, ZigCryptoStealer, and NetSupport Manager

Cisco Talos details ClearFake WebDAV chains delivering Amatera stealer to a Ukrainian government organization, with cryptocurrency and credential theft payloads.

Cisco Talos investigated DLL executions named 'verification.google' via WebDAV UNC paths at a Ukrainian government organization, tracking the actor as UAT-10820 and assessing with moderate confidence the activity is Russian and opportunistic rather than targeted. The infection chain uses ClearFake JavaScript injected via a Cloudflare Worker, EtherHiding storage on BNB Smart Chain contracts, and a ClickFix fake Google CAPTCHA prompt to deliver Amatera stealer. Secondary payloads differ by C2: one loader deploys ZigCryptoStealer with a Go reverse TCP proxy and a vulnerable driver that kills EDR, while the other installs an unauthorized NetSupport Manager with a Russia-based C2. Similar Amatera chains were separately documented by Malwarebytes and Blackpoint Cyber, but with no shared infrastructure.

Cisco Talos·Sep 8, 10:01 UTC · 8d agoMalware in the wild1

New infosec products of the week: August 21, 2026

Weekly product roundup covering NETSCOUT outbound DDoS mitigation, F5 AI Gateway enhancements, Intezer Workflows, and Tufin TOS 5.3.

NETSCOUT extended Adaptive DDoS Protection to automatically mitigate outbound attack traffic for service providers. F5 enhanced its AI Gateway and integrated it into the F5 AI Security Platform for unified AI access governance. Intezer launched Workflows, native automation and response inside its platform without a separate SOAR, and Tufin released Orchestration Suite 5.3 with AI-powered Segmentation Intelligence for multi-vendor environments.

Help Net Security·Aug 21, 00:00 UTC · 26d agoTools

Post-DEF CON Phishing Uses Malicious Google Doc to Deliver Malware

Huntress uncovered post-DEF CON phishing via X direct messages using a malicious Google Doc to deliver AMOS and NetSupport RAT malware.

Huntress uncovered a phishing campaign targeting attendees after Black Hat and DEF CON. Attackers used X direct messages pointing to a malicious Google Doc as the delivery vehicle. Payloads include AMOS, a macOS infostealer, and the NetSupport RAT, among other malware.

Huntress·Aug 19, 13:00 UTC · 27d agoPhishing & fraud

Citrix urges customers to fix critical NetScaler authentication bypass (CVE-2026-19490)

Citrix patched a critical authentication bypass, CVE-2026-19490, in NetScaler Gateway and NetScaler ADC, urging customers to upgrade immediately.

Citrix has patched two flaws in NetScaler ADC and NetScaler Gateway. CVE-2026-19490 is a critical authentication bypass (CVSS v4.0 9.3) that works when the appliance is configured as an SSL VPN, ICA Proxy, CVPN, RDP Proxy Gateway or AAA virtual server, with additional conditions depending on firmware and SAML configuration. A second flaw, CVE-2026-19489 (CVSS 8.8), is a memory overflow that can cause denial of service when SIP ALG is enabled on LSN setups. Rapid7 had not observed exploitation as of August 19, 2026, but urged emergency patching; a signature-based mitigation is available via NetScaler Console.

Help Net Security·Aug 21, 00:00 UTC · 26d agoVulnerabilityCVE-2026-19490CVE-2026-19489

Hackers Abuse Google CAPTCHA, WebDAV and BNB Smart Chain to Deploy Credential-Stealing Malware

Cisco Talos details ClickFix campaigns abusing fake Google CAPTCHA prompts, WebDAV and BNB Smart Chain to deploy the Amatera infostealer.

Cisco Talos identified a multi-stage campaign, first observed in April 2026 when a Ukrainian government organization executed a disguised DLL named verification.google from a WebDAV path. The chain combines ClearFake JavaScript injected via malicious Cloudflare Workers, EtherHiding payloads stored in BNB Smart Chain contracts, ClickFix social engineering, and WebDAV-hosted DLL loaders to deliver the Amatera (ACR Stealer) infostealer. The Amatera configuration contained over 400 collection entries targeting browsers, messengers, crypto wallets, password managers, FTP and VPN tools, hunting for .kdbx, .p12, .pfx and .pem files. The pf.ch branch deploys ZigCryptoStealer, an EDR-terminating vulnerable driver and Go-based reverse TCP proxies, while the verification.google branch installs NetSupport Manager, supporting moderate-confidence attribution of the UAT-10820 activity to a Russian actor.

GBHackers·updated Sep 11, 16:36 UTC · 4d ago·first Sep 9, 13:27 UTC · 6d agoMalware in the wild 4 sources

CVE-2026-19490: Critical Vulnerability Affecting Citrix NetScaler ADC and NetScaler Gateway

CVE-2026-19490 is a critical unauthenticated authentication bypass in Citrix NetScaler ADC and Gateway, remotely exploitable without user interaction.

An advisory published August 19, 2026 describes CVE-2026-19490, a critical authentication bypass affecting Citrix NetScaler ADC and NetScaler Gateway. The flaw carries a CVSS v4.0 base score of 9.3 and is remotely exploitable by unauthenticated attackers over the network without user interaction or elevated privileges. NetScaler ADC and Gateway are widely deployed enterprise products positioned at or near the network perimeter, providing load balancing, SSL/TLS offloading, and secure remote access. The text does not state whether exploitation has been observed in the wild.

Rapid7 Blog·Aug 19, 16:46 UTC · 27d agoVulnerabilityCVE-2026-194901

Researchers open-source a Wi-Fi cyber range for security training

NTNU and Aegean researchers open-source a software-emulated Wi-Fi cyber range using mac80211_hwsim with LLM-assisted scenario building.

Researchers from the Norwegian University of Science and Technology and the University of the Aegean published a design and prototype for a cyber range dedicated to IEEE 802.11 security training, emulating access points and clients with mac80211_hwsim, Linux namespaces, hostapd, wpa_supplicant, dnsmasq, and FreeRADIUS. The platform bundles Aircrack-ng, Wireshark, and custom tools WPAxFuzz and Bl0ck, and can convert plain-language scenario descriptions into deployable definitions via a locally hosted Llama model. A working prototype covering scenario creation and deployment is on GitHub; monitoring, access control, and orchestration zones remain future work.

Help Net Security·Aug 24, 04:21 UTC · 23d agoTools1

NETSCOUT expands Adaptive DDoS Protection with outbound attack mitigation

NETSCOUT extended Adaptive DDoS Protection to detect and mitigate outbound DDoS traffic at source, targeting IoT botnet attacks like Turbo-Mirai.

NETSCOUT announced an extension of its Adaptive DDoS Protection (ADP) for service providers to automatically detect and mitigate outbound DDoS traffic from compromised subscriber devices such as broadband routers and IoT devices. The capability addresses Turbo-Mirai-class botnets capable of multi-terabit attacks and integrates with Arbor Sightline, Arbor Threat Mitigation System, the ATLAS Intelligence Feed, and ASERT analysts. Source-side mitigation aims to reduce outages, transit costs, peering damage, and abuse complaints at ISPs.

Help Net Security·Aug 18, 00:00 UTC · 29d agoTools

USN-8731-1: MiniUPnPd vulnerability

Ubuntu issued USN-8731-1 fixing a MiniUPnPd integer underflow allowing remote DoS or information disclosure via malformed SOAPAction headers.

Ubuntu released USN-8731-1 to address an integer underflow vulnerability in MiniUPnPd's SOAPAction header parsing. A remote attacker could send a malformed SOAPAction header containing a single quote to trigger a denial of service or information disclosure. MiniUPnPd is a lightweight UPnP daemon widely deployed on routers and gateways.

Ubuntu Security Notices·Sep 7, 09:30 UTC · 9d agoAdvisory1

N4D Mesh Controller: New infrastructure, a UPX-packed agent labeled "go-titan," and how to hunt for it

Datadog researchers detonated a new N4D Mesh Controller sample in microVMs, revealing rotated infrastructure, a UPX-packed go-titan agent, and persistence behavior.

Datadog Security Research executed a newer N4D Mesh Controller sample in isolated microVMs, uncovering rotated command infrastructure and a UPX-packed agent labeled go-titan. Runtime evidence showed MCP tool abuse, multi-service scanning, and persistence mechanisms. The report provides hunting guidance for defenders tracking this infrastructure.

Datadog Security Labs·Aug 20, 00:00 UTC · 27d agoMalware

New infosec products of the month: August 2026

August 2026 roundup of security product releases from ServiceNow, Tanium, Snyk, F5, A10, Searchlight Cyber, Intezer, NETSCOUT, Tufin, and Abnormal AI.

Help Net Security's monthly product roundup covers roughly a dozen vendors. Highlights include Snyk's general availability of Evo Continuous Offensive Security with AI-powered pentesting and AI agent red teaming, Searchlight Cyber's PTEM platform combining exposure visibility with attacker intelligence, and A10 and F5 AI gateways to govern enterprise LLM and agent usage. Other updates include Abnormal AI email DLP and phishing training, NETSCOUT outbound DDoS mitigation for service providers, Intezer's native Workflows automation, and Tufin's AI-powered Segmentation Intelligence.

Help Net Security·Aug 28, 00:00 UTC · 19d agoTools

A Feature-Rich Embedded NIDS with eBPF/XDP: Detector and Architecture Trade-offs

eBPF/XDP-based NIDS with Isolation Forest reaches 0.965 live F1 on DDoS replay; gRPC microservices match monolithic accuracy within 2ms overhead.

The paper presents a DDoS-focused network intrusion detection system for transport networks built with Ericsson, combining a statistical baseline with an Isolation Forest trained on flow features from GoFlowMeter, an open-source Go implementation of CICFlowMeter, plus eBPF/XDP kernel-level traffic filtering. On a Raspberry Pi 5 testbed replaying CIC-DDoS2019 as real traffic, the Isolation Forest achieves 0.965 recall/F1 live in the monolithic variant, catching low-volume attack windows the baseline misses. gRPC microservices nearly match monolithic accuracy adding under 2ms per window, while the Kafka pipeline trails by roughly nine percentage points and adds about 27ms.

arXiv cs.CR·Sep 11, 09:00 UTC · 5d agoResearch

SAP security advisory – September 2026 monthly rollup (AV26-894)

Canada's Cyber Centre relayed SAP's September 2026 Patch Day rollup covering vulnerabilities across NetWeaver, kernel components, CAP, and Integration Suite.

The Canadian Centre for Cyber Security published advisory AV26-894 noting that as of September 8, 2026, SAP is affected by vulnerabilities in multiple products, including SAP Extended Passport, NetWeaver Message Server, SAP Cloud Application Programming Model, SAP GUI for Java, Integration Suite Cloud Integration, NetWeaver Business Client, and NetWeaver AS for ABAP. The advisory corresponds to SAP Security Patch Day September 2026 and lists many affected kernel and web dispatcher versions. Administrators are urged to review the SAP advisory and apply updates as available.

Canadian Centre for Cyber Security·Sep 8, 18:03 UTC · 7d agoAdvisory

Pyramid Solutions NetStaX EtherNet/IP Stack

CISA flags critical CVE-2026-78012 (CVSS 9.8) stack buffer overflow in Pyramid Solutions NetStaX EtherNet/IP stacks below v5.6.1, risking crashes or remote attack vectors.

CISA republished Pyramid Solutions' advisory for CVE-2026-78012, a CWE-121 stack-based buffer overflow in the NetStaX EtherNet/IP stack versions prior to 5.6.1, scored CVSS 9.8. Large Class 3 explicit-message requests can exceed the application-side receive buffer without generating a CIP error, potentially causing memory corruption, device crashes, or a silent remote attack vector. All eight adapter and scanner DLL/development kit variants, including CIP Security editions, are affected across critical manufacturing, energy, water, and chemical sectors. No public exploitation has been reported.

CISA Advisories·Sep 3, 12:00 UTC · 12d agoAdvisoryCVE-2026-78012

10th August – Threat Intelligence Report

North Carolina Ports suffered a cyberattack forcing Wilmington and Morehead City operations onto manual processes; the authority says it is contained.

Check Point's weekly threat intelligence bulletin reports that North Carolina Ports, the US authority operating the ports of Wilmington and Morehead City among others, suffered a cyberattack. The incident forced some operations onto manual processes. The authority claims it has contained the attack.

Check Point Research·Aug 10, 13:53 UTC · Aug 10, 2026Data breach

Progress Software security advisory (AV26-875)

Canada's Cyber Centre warns Progress Telerik UI for ASP.NET AJAX before 2026.3.812 is affected by path traversal and upload tampering flaws, urging updates.

The Canadian Centre for Cyber Security issued advisory AV26-875 on September 2, 2026, covering vulnerabilities in Progress Software Telerik UI for ASP.NET AJAX prior to version 2026.3.812. Two flaws are listed: CVE-2026-18672, a path traversal in the Telerik Web Forms RadImageEditor, and CVE-2026-19219, a DialogHandler UploadPaths tampering vulnerability. Administrators are encouraged to review the provided links and apply available updates.

Canadian Centre for Cyber Security·Sep 2, 15:33 UTC · 13d agoAdvisoryCVE-2026-18672CVE-2026-19219

Uptime Kuma 2.5.0 waits two weeks before trusting a new npm package

Help Net Security·Aug 4, 00:00 UTC · Aug 4, 2026Industry1

Disruptive cyber activity highlights risk from internet-exposed systems and edge devices

NCSC links disruptive cyber activity to internet-exposed systems and edge devices, urging OT owners to fix avoidable vulnerabilities and improve resilience.

The UK's NCSC issued guidance following disruptive cyber activity that highlights the risk to internet-exposed systems and edge devices. It encourages owners of operational technology to remediate avoidable vulnerabilities and invest in long-term cyber resilience. The notice underscores that exposed edge devices remain a common entry point for attackers against OT environments.

NCSC UK·Aug 27, 12:00 UTC · 19d agoAdvisory in the wild

[Webinar] Tales from the Frontlines: An exclusive briefing on Q2 incidents

Cisco Talos·Aug 3, 16:00 UTC · Aug 3, 2026Ransomware

Coast Guard says it is monitoring cyberattack that disrupted North Carolina's ports

CyberScoop·Aug 7, 14:24 UTC · Aug 7, 2026Exploit / PoC in the wild

Cybersecurity IR Workshop: The workshop you shouldn’t miss

Microsoft's DART team promotes a 2-3 day Cybersecurity Incident Response Readiness Workshop that stress-tests IR plans against simulated attacks.

Microsoft's Detection and Response Team (DART), which delivers Defender Experts incident response and has supported organizations across 54 countries, is offering its Cybersecurity Incident Response Readiness Workshop. The scenario-driven engagement exercises detection, investigation, containment, and decision-making across identity, endpoint, cloud, and communications, ending with prioritized recommendations. It is available to Unified Enterprise agreement customers via their Customer Success Account Manager.

Microsoft Security Blog·Sep 1, 18:55 UTC · 14d agoIndustry

Rockwell Automation 1756-ENBT Module

Rockwell's 1756-ENBT ControlLogix EtherNet/IP bridge (all versions) is vulnerable to DoS via crafted CIP packets, crashing the module until manual restart.

CISA republished Rockwell Automation's advisory for CVE-2025-10478, a CWE-754 flaw affecting all versions of the 1756-ENBT ControlLogix EtherNet/IP bridge, scored CVSS 7.5. A crafted CIP packet can crash the module, and the device requires a restart to recover. Affected critical infrastructure sectors include critical manufacturing, food and agriculture, transportation systems, and water. No public exploitation has been reported; CISA recommends minimizing network exposure.

CISA Advisories·Sep 3, 12:00 UTC · 12d agoAdvisory 3 sourcesCVE-2025-10478

How an Emerging Industrial Protocol Family Could Put OT at Risk

New research shows unprotected Time-Sensitive Networking industrial protocols could let attackers disrupt or manipulate physical processes in OT environments.

Research covered by Dark Reading examines an emerging family of industrial protocols based on Time-Sensitive Networking (TSN) and finds that unprotected implementations could be attacked to disrupt or manipulate physical processes. The findings highlight growing OT risk as these protocols proliferate in industrial deployments; no confirmed exploitation is reported.

Dark Reading·Aug 21, 20:24 UTC · 25d agoResearch

NIST Seeks Public Input on AI-Ready NVD Modernization

NIST is seeking public comment on modernizing the National Vulnerability Database to support AI-powered vulnerability research.

The US National Institute of Standards and Technology announced it is soliciting public input on modernizing the National Vulnerability Database. The initiative aims to make the NVD AI-ready to support AI-powered vulnerability research and analysis.

Infosecurity Magazine·Aug 12, 12:30 UTC · Aug 12, 2026Policy & legal

Quantifying IIoT Sensor Node Criticality by Fusing its Data Criticality and Security Vulnerability

Researchers propose a Dempster–Shafer framework fusing IIoT sensor data criticality with CVSS 4.0/3.1 vulnerability scores to rank node criticality.

The paper introduces a framework that evaluates Industrial IoT sensor node criticality by fusing data criticality and cybersecurity vulnerability scores using Dempster–Shafer (D-S) theory. It was validated on a dataset from red wine production and is claimed to generalize to other industrial settings with minimal modification. Results show criticality rankings derived from CVSS 4.0 scores differ significantly from those derived from CVSS 3.1, underscoring how vulnerability scoring methodology affects security prioritization.

arXiv cs.CR·Sep 9, 07:03 UTC · 7d agoResearch

Microsoft security advisory – August 2026 monthly rollup (AV26-804) – Update 2

Canada's Cyber Centre updated advisory AV26-804 relaying Microsoft's August 2026 monthly rollup of vulnerabilities across .NET and Azure products.

The Canadian Centre for Cyber Security advisory AV26-804, updated August 27, 2026, relays Microsoft's August 2026 monthly security rollup originally issued August 11. Affected products include .NET 8.0, 9.0, and 10.0 on Linux, macOS, and Windows, plus many Azure services. Listed Azure components include Azure Kubernetes Service, Azure SQL Database, Azure Service Bus, Azure Active Directory, Azure Logic Apps, and Azure Monitor Agent.

Canadian Centre for Cyber Security·Aug 27, 17:23 UTC · 19d agoAdvisory1

Hottest cybersecurity open-source tools of the month: August 2026

August's open-source security roundup highlights NVIDIA SkillSpector for AI agent skill scanning, Future AGI, Chainloop, PentestGPT, and Hazmat agent containment.

Help Net Security's August 2026 roundup covers five open-source tools: NVIDIA's SkillSpector, a scanner that assesses AI agent skills from directories, zips, SKILL.md files, or Git URLs and returns findings and risk scores; Future AGI, an Apache 2.0 platform for tracing, evaluating, simulating, and guardrailing LLM agents; Chainloop, a software supply chain evidence store that produces signed in-toto attestations in CI pipelines; PentestGPT, an agentic penetration testing framework running recon, exploit, and reporting stages; and Hazmat, which runs AI coding agents like Claude Code and Codex inside a separate machine account for containment.

Help Net Security·Aug 26, 00:00 UTC · 21d agoTools

Path to Astra: critical capabilities and frontier safeguards

OpenAI says Astra is its first model to meet the Critical cybersecurity capability threshold under the Preparedness Framework, launching with stronger safeguards.

OpenAI published 'Path to Astra', announcing that Astra is the first OpenAI model to meet the Critical cybersecurity capability threshold under its Preparedness Framework. The company says the model will be released with strengthened frontier safeguards, marking a milestone in frontier capability and safety evaluation.

OpenAI News·Sep 1, 13:00 UTC · 14d agoModel release