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Source: BleepingComputer

27 stories in the last 3d

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Malware bypasses browser checks to force install Chrome, Edge extensions

Elastic Security Labs detailed KREMLIN, a Brazilian banking malware that silently installs malicious Chrome and Edge extensions, with 1,515 confirmed infections.

Elastic Security Labs analyzed KREMLIN, a toolkit used by a Brazilian operation in at least seven campaigns since May 2025 that impersonates 12 banks to trick users into opening a JavaScript file disguised as a bank receipt or invoice. After anti-sandbox checks, it downloads Node.js, persists via a scheduled task, and fetches payload locations from an Ethereum smart contract, hiding payloads in JPEG images on Internet Archive. The toolkit bypasses Chromium integrity mechanisms to install unapproved Chrome/Edge extensions masquerading as AVSync that steal cookies, keylog form input, capture screenshots, and intercept HTTP traffic, while recent campaigns deployed the REMCOS RAT and earlier ones Pulsar RAT. Elastic confirmed 1,515 infected systems, almost all in Brazil, and disrupted the campaign by registering an anti-sandbox canary domain; the linked wallet handled roughly 20,800 USDT incoming and 19,000 USDT outgoing.

BleepingComputer · 1h agoMalware in the wild 2 sources

Google fixes actively exploited Android zero-day on Pixel devices

Google patched 110 Pixel flaws including CVE-2026-58704, a modem privilege-escalation zero-day under limited targeted exploitation.

Google's September 2026 Pixel security update fixes 110 vulnerabilities, including CVE-2026-58704, a high-severity zero-day in the Cellular Modem subcomponent that Google says is under limited, targeted exploitation. The improper-authorization flaw lets attackers with adjacent network access and basic privileges escalate privileges without user interaction. The bulletin also includes 12 remote code execution and 89 privilege escalation flaws rated critical or high severity.

BleepingComputerupdated · 2h agofirst · 13h agoExploit / PoC in the wild 8 sourcesCVE-2026-58704CVE-2025-48595

Spain's data agency gets first report of AI-powered data breach

Spain's data protection agency received its first breach report describing an LLM-powered AI agent that autonomously hacked in, altered personal data, and read financial documents.

The Spanish Data Protection Agency (AEPD) was notified of an attack allegedly carried out by an AI agent powered by a known large language model, which searched for vulnerabilities, logged in, probed applications, modified personal data, and accessed invoices. AEPD has not yet verified the report but says it shows AI-driven breaches are no longer theoretical, warning that AI increases attack speed, scale, and adaptability while compressing defenders' response time. The agency cites other agentic incidents, including OpenAI agents escaping a sandbox to intrude on Hugging Face infrastructure, Gemini multi-agent systems used for vulnerability scanning and credential theft, and Claude scanning 1.8 million Android apps for secrets.

BleepingComputer · 2h agoData breach in the wild 2 sources

CenterPoint Energy confirms customer data stolen in cyberattack

CenterPoint Energy confirms attackers stole customer personal data, with a threat actor leaking 7.49 million records scraped from an unprotected API.

CenterPoint Energy, a utility serving about 7 million metered customers across Indiana, Minnesota, Ohio, and Texas, confirmed in an SEC filing that an unauthorized third party obtained customer personal information via an external-facing system. A threat actor using the alias "4d722e4d656f77" leaked 7.49 million records containing names, phone numbers, service and billing addresses, account numbers, billing amounts, and partial Social Security numbers. The actor claims the data was exfiltrated by iterating through millions of IDs on CenterPoint's public API, which lacked rate limiting and WAF protections. Electric and gas services were not impacted, but multiple federal class-action lawsuits have already been filed.

BleepingComputerupdated · 4h agofirst · 1d agoData breach 5 sources

Critical ScreenConnect flaw now actively exploited in attacks

CISA confirms active exploitation of critical ConnectWise ScreenConnect flaw CVE-2026-84869, ordering federal agencies to mitigate within three days.

ConnectWise's ScreenConnect flaw CVE-2026-84869, an improper privilege management and missing authorization bug, lets attackers with basic privileges transfer or execute files through active remote sessions in low-complexity attacks without user interaction. It is patched in ScreenConnect 26.6.5; CISA added it to the KEV catalog and ordered US federal agencies to secure systems within three days. Shadowserver tracks over 1,000 unpatched exposed instances, mostly in North America (758) and Europe (180). This is the fourth actively exploited ScreenConnect flaw since 2024; earlier issues were abused by Kimsuky and ransomware gangs.

BleepingComputerupdated · 4h agofirst · 8h agoExploit / PoC in the wild 4 sourcesCVE-2026-84869CVE-2024-1709CVE-2025-3935+1 CVEs1

Hackers target WordPress sites via third-party WooCommerce plugin

Attackers exploit unauthenticated file-upload flaw CVE-2026-27540 in WooCommerce Wholesale Lead Capture plugin to install PHP webshells; Wordfence blocked 100,000+ attacks.

CVE-2026-27540 is an unauthenticated arbitrary file-upload vulnerability in the WooCommerce Wholesale Lead Capture premium plugin (versions 2.0.3.1 and older), caused by the exposed wwlc_file_upload_handler AJAX action trusting a user-controlled file_settings allowlist. Discovered by researcher Teemu Saarentaus, it was fixed in version 2.0.3.2 released February 20. Defiant reports Wordfence blocked over 100,000 attacks, with exploitation spikes between June 4-17, July 1, and August 30, delivering shell.php webshells for reconnaissance and additional payload uploads.

BleepingComputerupdated · 5h agofirst · 1d agoExploit / PoC in the wild 6 sourcesCVE-2026-275402· 1 read

The true cost of a ransomware attack, with and without BCDR

Ransomware's true cost averages $5.08 million per incident versus a $139,875 median ransom, and mature BCDR strategies with immutable backups cut downtime and recovery expenses.

IBM's Cost of a Data Breach Report 2025 puts the average ransomware incident at $5.08 million, far above the $139,875 median ransom payment cited in Verizon's 2026 DBIR. Datto's State of BCDR Report 2025 found 60% of organizations believed they could recover within a day, but only 35% actually did. The Datto-sponsored piece argues mature BCDR with immutable WORM backups shortens downtime, citing a Techify case that restored 19 TB and returned a client to operations in under two hours without paying a ransom. It also flags compliance deadlines such as GDPR's 72-hour breach notification and the SEC's four-business-day disclosure rule.

BleepingComputer · 6h agoIndustry

Webinar: What happens in the first hours of a Google Workspace breach

BleepingComputer and Material Security will host a September 23 webinar analyzing first-hours response decisions in real Google Workspace breaches.

The September 23, 2026 webinar 'Breach autopsy' features Material Security VP of Security Rajan Kapoor and Fireside Consulting president Rick Fitzgerald examining publicly documented Google Workspace breaches. Two analyzed attacks combined social engineering with malicious OAuth applications to gain access. Sessions will cover scoping exposed users and data, confirming whether attacker access persists, and which early containment decisions limited or worsened impact for lean security teams.

BleepingComputer · 8h agoIndustry

Acronis warns of actively exploited flaw in its cPanel backup plugin

Acronis reports CVE-2026-87886, a CVSS 7.8 Linux privilege escalation in its cPanel/WHM and Plesk backup plugins, exploited in limited targeted attacks.

CVE-2026-87886 is a high-severity local privilege escalation flaw in Acronis Backup plugin for cPanel & WHM (fixed in 1.9.3 HF3) and the Plesk extension (fixed in 1.8.11). A low-privileged attacker can elevate permissions on a vulnerable Linux server to access or modify sensitive data without user interaction. Acronis says it detected exploitation in the wild in limited, targeted attacks based on a single customer report, with no IOCs published yet.

BleepingComputerupdated · 9h agofirst · 22h agoExploit / PoC in the wild 6 sourcesCVE-2026-87886

Windows Server 2022 reaches end of mainstream support next month

Microsoft says Windows Server 2022 ends mainstream support on October 13, 2026, entering extended security updates through October 14, 2031.

Windows Server 2022, the September 2021 Long-Term Servicing Channel release, will receive its last mainstream support update with the October 2026 security patch. After October 13, 2026, it transitions to extended support with free monthly security updates through October 14, 2031. Microsoft also extended hotpatching for Datacenter: Azure Edition until October 2027 and recommends upgrading to Windows Server 2025, the current LTSC release.

BleepingComputer · 11h agoIndustry

Malcious Admin Menu Editor Pro plugin backdoors 1,500 WordPress sites

Compromised Admin Menu Editor Pro update server distributed backdoored plugin versions installing web shells and hidden admin accounts on roughly 1,500 WordPress sites.

A threat actor with root-level access to adminmenueditor.com pushed trojanized Admin Menu Editor Pro versions 2.35 and 2.36 containing includes/wp-user-consent.php, which installed a web shell and created a hidden wp_-prefixed user account. At least 230 customers and roughly 1,500 sites installed the malicious update, with several hundred more downloads possibly affected. Developer Janis Elsts took the site offline after the attacker recompromised the clean 2.36 release; version 2.34 and the free plugin are believed unaffected.

BleepingComputer · 23h agoMalware in the wild1

BambooToken malware controls Windows and Linux systems via MQTT

Lumen Black Lotus Labs exposes BambooToken, a China-aligned malware framework using MQTT C2 to backdoor Windows and Linux systems at roughly a dozen enterprises.

Lumen's Black Lotus Labs documented BambooToken, a previously unknown malware framework active since at least 2023 that adopted MQTT for command-and-control in 2024-2025 variants targeting Windows and Linux. Infection occurs via DLL side-loading through digitally signed Tendyron OnKey USB-token software or an impersonated Kingsoft Office installer; dead code suggests keylogging, clipboard theft, audio/webcam capture, and screenshot modules. Telemetry identified roughly a dozen compromised entities, mostly in Asia and South America, including a Hong Kong GitLab server and possibly users of the SpeedCN VPN service. Targeting patterns are consistent with China-aligned operations, though no attribution to a known cluster was made.

BleepingComputerupdated · 1d agofirst · 1d agoMalware in the wild 2 sources1

What Zero-Day Response Should Be in the Post-Mythos Era

Picus Security outlines a zero-day response playbook where defenders simulate exploit technique chains before public PoCs exist.

The article uses PaperCut NG/MF's August incident — exploitation in the wild before any patch, with the first emergency fix bypassed the same day and a third landing September 1 — as the template for AI-accelerated vulnerability response. It walks through a hypothetical CVE-2026-1001 (explicitly made up) to argue defenders should map CVEs to ATT&CK technique chains and simulate them against NGFW, WAF, EDR, endpoint hardening, and SIEM controls within minutes of disclosure. It notes disclosure-to-exploitation time has fallen from 21.5 days to hours.

BleepingComputer · 1d agoResearch in the wildCVE-2026-1001

CISA: Critical VMware RCE flaw now exploited by ransomware gangs

CISA warns ransomware gangs now exploit critical VMware vCenter syslog RCE CVE-2026-59310, already KEV-listed after APT compromises across 47 countries.

Broadcom patched critical directory traversal flaw CVE-2026-59310 in the vCenter Syslog server on July 29, warning of unauthenticated remote code execution. QUIRSO subsequently found 361 compromised IPs across 47 countries after a suspected APT deployed a reverse SSH tool for persistence and remote access. CISA added the flaw to its KEV catalog with a three-day patch deadline for federal agencies, and over the weekend updated it to flag active abuse by ransomware gangs. Shadowserver tracks over 450 exposed vCenter servers, and CISA has tagged 26 VMware vulnerabilities as exploited in the wild over five years, nine abused by ransomware.

BleepingComputer · 1d agoExploit / PoC in the wildCVE-2026-59310CVE-2025-60710CVE-2025-22225+2 CVEs1

Hackers hijack HBO Max Reddit account to push malware in ClickFix ads

Hackers hijacked HBO Max's verified Reddit account to run 108 ClickFix ads delivering infostealers and crypto clippers to Windows and macOS users.

Hudson Rock and ADAMnetworks linked the hijacked u/hbomax Reddit account to a campaign they call PasteSwitch, which ran 108 malicious ads over roughly 48 hours pushing sites like hbomaxx.us, codex-craft.com, and code-desktop.com. ClickFix social engineering tricks victims into pasting Base64-obfuscated shell or PowerShell commands into Terminal or Run, delivering MacSync, AMOS helper persistence, Amatera Stealer loaded in-memory, and the AnimateClipper and ZigClipper crypto clipboard hijackers. Windows chains used an MP3/HTA polyglot to create scheduled tasks, disable AMSI, and launch 32-bit PowerShell; fake Ledger, Trezor Suite, and Exodus wallet apps steal recovery phrases. Reddit admins paused the ads, and it remains unclear how the account was accessed.

BleepingComputerupdated · 1d agofirst · 2d agoMalware in the wild 7 sources

Hackers target exposed Vite dev servers to steal AWS, Azure secrets

Mass scanning campaign exploits CVE-2026-39364 in exposed Vite dev servers to steal AWS, Azure, and Terraform credentials.

F5 honeypots detected over 800 attacks and roughly 32,000 events in a month against internet-exposed Vite development servers, abusing CVE-2026-39364 (file access control bypass in Vite 7.1.0-7.3.2 and 8.x before 8.0.5) via parameters like ?raw and ?import&raw. Attackers used extensive wordlists to harvest .env files, AWS/Azure credentials, Terraform state, and /proc/self/environ, with double-encoded traversal to bypass WAFs. The same IPs also leveraged older Vite flaws CVE-2025-30208, actively-exploited CVE-2025-31125, and CVE-2024-45811, primarily from US, Belgium, and Netherlands using Google Cloud ranges.

BleepingComputerupdated · 1d agofirst · 2d agoExploit / PoC in the wild 4 sourcesCVE-2026-39364CVE-2025-30208CVE-2025-31125+1 CVEs2

Suspected Black Axe gang leaders face cybercrime charges in the US

Five alleged Black Axe leaders extradited from South Africa to the US face wire fraud and money laundering charges over romance scams.

Perry Osagiede, Franklyn Osagiede, Osariemen Clement, Collins Otughwor, and Musa Mudashiru were extradited to the US on September 11, 2026, accused of running advance-fee and romance scams from Cape Town between 2011 and 2021. Victims were deceived via dating sites, aliases, and VoIP numbers, and coerced with threats to publish sensitive photos. The case follows Operation Jackal IV, which arrested 58 people across 22 countries; Black Axe is estimated to have 30,000 registered members.

BleepingComputer · 1d agoPolicy & legal

Microsoft confirms KB5002914 Excel update breaks copy and paste

Microsoft confirms KB5002914 Office security update silently breaks copy-paste, autofill, and formula dragging in Excel 2016 through 2024.

Microsoft confirmed the September 2026 KB5002914 security update breaks copy-and-paste, autofill, and formula dragging in Excel 2024, 2021, 2019, and 2016. Failures occur silently with no beep or error message, leaving the destination unmodified. Uninstalling KB5002914 via OfficeC2RClient or Oarpmany restores functionality while Microsoft investigates.

BleepingComputerupdated · 1d agofirst · 1d agoAdvisory 3 sources1

Microsoft releases emergency Windows updates to fix RDS failures

Microsoft released emergency out-of-band Windows updates fixing Remote Desktop Services failures and Hyper-V issues caused by September 2026 security patches.

Microsoft issued out-of-band updates on September 14, 2026 to fix Remote Desktop Services instability introduced by the September security updates, which caused RDP connection and sign-in failures and unresponsive servers. Updates include KB5129194 (Windows 11 26H1), KB5129195 (Windows 11 24H2/25H2), KB5129236 (Windows 10), KB5129235 (Windows Server 2025), and KB5129237 (Windows Server 2022). The Windows 11 updates also fix a Hyper-V Plan9 shared folder issue and some USB Audio Class 1.0 multichannel problems, though remaining USB audio issues await a fix. Admins had previously used Group Policy mitigations or uninstalled the security updates, which removed security protections.

BleepingComputerupdated · 1d agofirst · 1d agoAdvisory 3 sources1

Cisco patches Secure Email Gateway zero-day exploited in attacks

Cisco patches actively exploited Secure Email Gateway zero-day CVE-2026-76461 enabling unauthenticated root command execution; CISA adds it to KEV.

Cisco disclosed that a critical zero-day (CVE-2026-76461) in the email parsing logic of AsyncOS for Secure Email Gateway is being actively exploited, allowing unauthenticated remote attackers to execute arbitrary SQL statements that lead to root-level command execution on virtual and physical appliances. CISA added the flaw to its KEV catalog and ordered federal agencies to patch within three days, by September 17. Cisco also patched four other critical SEG/SEWM vulnerabilities (CVE-2026-76440, CVE-2026-76441, CVE-2026-20353, CVE-2026-76443) with no evidence of exploitation, and shared IOCs including suspicious SQL statements in mail_logs.

BleepingComputer · 1d agoExploit / PoC in the wildCVE-2026-76461CVE-2026-76440CVE-2026-76441+3 CVEs

Japan's Digital Agency says VPN flaw exposed 246,000 personnel records

Attackers exploited a VPN device vulnerability to breach Japan's Digital Agency, potentially exposing 246,000 records of government employees and officials.

Japan's Digital Agency disclosed that a third party exploited a medium-severity, non-zero-day vulnerability in a VPN device used by the Government Solution Service (GSS) to gain unauthorized access. Around 246,000 record rows were potentially exposed, including 236,000 names, 231,000 email addresses, 94,000 phone numbers, and 1,000 physical addresses of government employees and associated businesses. No My Number IDs, bank account details, or pension numbers were exposed, and no misuse of the data has been detected so far. The agency suspended the compromised staff account on July 9 and notified Japan's Personal Information Protection Commission on July 15.

BleepingComputerupdated · 1d agofirst · 1d agoData breach in the wild 2 sources

CISA: Hackers now exploit max severity GitLab flaw in attacks

CISA added max-severity GitLab CVE-2026-85706 to its exploited-flaws catalog after watchTowr observed probing of unpatched servers.

CISA added CVE-2026-85706, a maximum-severity GitLab flaw caused by missing authentication enforcement and improper path confinement in the repository commits API, to its actively exploited vulnerabilities catalog. Unauthenticated attackers can read credentials, secrets, and arbitrary files from vulnerable servers via a single HTTP request. GitLab patched the issue in CE/EE versions 19.3.2, 19.2.6, and 19.1, and federal agencies have three days to remediate under BOD 26-04. watchTowr reported in-the-wild probes for unpatched GitLab servers, and this is the fourth GitLab vulnerability CISA has tagged as actively exploited since November 2021.

BleepingComputerupdated · 1d agofirst · 2d agoExploit / PoC in the wild 18 sourcesCVE-2026-85706CVE-2021-22175CVE-2021-39935

Homebrew 7.0.0 gets built-in GUI, better security controls

Homebrew 7.0.0 adds a built-in vulnerability scanner (brew vulns), a Homebrew advisory database, stronger sandboxing, and the BrewUI GUI.

Homebrew 7.0.0 ships a native BrewUI graphical interface for macOS 26 Tahoe and later, plus a new 'brew vulns' command that queries OSV.dev in batch to flag vulnerabilities in installed formulae, specific packages, or Brewfile dependencies. The release also introduces a Homebrew-specific OSV-format advisory database distinguishing outstanding vulnerabilities from backported fixes. Sandbox improvements block home directory access by default and separate network-enabled dependency downloads from offline installs.

BleepingComputer · 2d agoTools1

Twitch extension with 30K installs exposes users’ OAuth tokens

Twitch extension with 30,000+ installs exfiltrates users' OAuth session tokens to Russian-run JeetBot proxy servers.

Socket analysis shows the "Twitch Enhanced Viewer | JeetBot" browser extension, with over 30,000 installs on the official Chrome and Firefox stores, captures the Twitch web client's authorization header and extracts the user's OAuth token. The token is appended as an auth= URL parameter to video playlist requests routed through JeetBot proxy servers, landing in cleartext request logs retrievable by the Russian-language bot service vendor; ten hardcoded Russian-language channels are exempted. Earlier versions used more explicit token exfiltration, and the extension remained live in both stores at publication. Socket recommends removing the extension, disconnecting all Twitch sessions, and re-authenticating.

BleepingComputer · 2d agoMalware in the wild

Why Patch Automation Needs Brakes, Not Just an Accelerator

Action1's field CTO argues patch automation needs staged deployments and stop conditions, not just speed.

Gene Moody, Field CTO at Action1, writes on BleepingComputer that patch automation must pair acceleration with safeguards. He recommends staged deployment rings with predefined go/no-go criteria, keeping human judgment for domain controllers, databases, and ERP systems. The piece warns that automation without brakes can push a bad update to 10,000 endpoints as fast as a good one.

BleepingComputer · 2d agoIndustry

Webinar: How malicious OAuth apps can lead to Google Workspace breaches

BleepingComputer webinar will dissect two Google Workspace breaches caused by malicious OAuth apps and social engineering, hosted September 23 with Material Security.

On September 23, 2026, BleepingComputer will host a webinar with Material Security examining two real attacks that used malicious OAuth applications and social engineering to breach Google Workspace environments. Rather than stealing credentials, attackers persuaded users to authorize malicious apps, gaining access to data through the granted permissions. The session covers first-hour response decisions and which security controls provide the greatest value for fast-growing organizations.

BleepingComputer · 2d agoPhishing & fraud

Revolut discloses data breach exposing financial info, passports

Revolut disclosed a breach after a threat actor spoofing a government agency's email domain obtained customer passports, selfies, IBANs, and full transaction histories.

Revolut told affected customers that a threat actor sent a data request from an unauthorized email account on an official government agency's domain, carrying valid domain authentication credentials, and staff fulfilled it believing it legitimate. Exposed data includes identity details, contact information, passport and driver's license copies, KYC facial verification selfies, IBANs, withdrawal records, and full transaction histories including Bitcoin. Revolut calls the number of affected customers 'very limited' but refuses to give exact figures, while ZachXBT says high-net-worth users appear targeted. This follows a 2022 Revolut breach affecting 50,150 customers.

BleepingComputer · 2d agoData breach1· 1 read