All news with #active exploitation tag

⚠️ CISA has flagged a critical Microsoft Configuration Manager vulnerability (CVE-2024-43468) as actively exploited after Microsoft patched it in October 2024. The flaw is a SQL injection that can allow unauthenticated remote attackers to achieve remote code execution and run commands with elevated privileges on the server or site database. CISA ordered federal agencies to apply the patch or mitigations by March 5 under BOD 22-01 and urged all organizations to secure affected systems immediately.

⚠️ CISA has added CVE-2026-1731 to its Known Exploited Vulnerabilities (KEV) Catalog after confirming active exploitation of an OS command injection vulnerability affecting BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA). CISA emphasizes that command injection flaws are a frequent and dangerous attack vector that pose significant risk to the federal enterprise. Under BOD 22-01, Federal Civilian Executive Branch agencies must remediate KEV entries by the specified due date; CISA strongly urges all organizations to prioritize timely remediation and integrate these fixes into their vulnerability management processes.

🔴 watchTowr reported the first in-the-wild exploitation of a critical BeyondTrust vulnerability, CVE-2026-1731, with attackers abusing the get_portal_info endpoint to extract the x-ns-company value before establishing a WebSocket channel. The flaw (CVSS 9.9) allows unauthenticated remote code execution by sending specially crafted requests and has been patched in Remote Support (BT26-02-RS, 25.3.2+) and Privileged Remote Access (BT26-02-PRA, 25.1.1+). The rapid weaponization highlights how quickly defenders must patch critical systems. CISA also added four actively exploited flaws to its KEV catalog and set federal remediation deadlines in February and March 2026.

🚨 A critical pre-authentication remote code execution vulnerability, CVE-2026-1731, in BeyondTrust Remote Support and Privileged Remote Access appliances is being actively exploited after a proof-of-concept was published. The flaw affects Remote Support ≤25.3.1 and Privileged Remote Access ≤24.3.4 and allows unauthenticated attackers to execute OS commands as the site user. BeyondTrust automatically patched SaaS instances on Feb 2, 2026; on-premises customers must install vendor updates immediately.

⚠️ CISA has added four vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog following evidence of active exploitation. The new entries are CVE-2024-43468 (Microsoft Configuration Manager SQL injection), CVE-2025-15556 (Notepad++ download of code without integrity check), CVE-2025-40536 (SolarWinds Web Help Desk security control bypass), and CVE-2026-20700 (Apple multiple buffer overflow). CISA cites their frequent use by malicious actors and urges prioritized remediation under BOD 22-01 guidance.

🔍 GreyNoise attributes 83% of exploitation attempts against Ivanti Endpoint Manager Mobile (EPMM) to a single IP hosted on PROSPERO bulletproof infrastructure. Between Feb 1–9, 2026 it recorded 417 sessions from eight source IPs, with 346 sessions from 193.24.123[.]42. Activity targeted CVE-2026-1281 (CVSS 9.8), showed automated tooling patterns and DNS OAST callbacks, and involved rotation through 300+ user-agent strings. Defused Cyber also reported a dormant "/mifs/403.jsp" sleeper shell deployed to some EPMM instances.

🔒 Unit 42 identified that between June and December 2025 the state-sponsored group Lotus Blossom hijacked the Notepad++ update infrastructure by compromising a shared hosting provider and intercepting WinGUp traffic. Attackers delivered malicious NSIS installers that launched either a Lua-script chain loading Cobalt Strike Beacon or a DLL sideload that deployed the Chrysalis backdoor. Notepad++ released patches, moved hosting, implemented XML signature verification, and Unit 42 published IOCs and hunting guidance for defenders.

🔒 Microsoft released security updates fixing 59 vulnerabilities across Windows and related products, including six flaws Microsoft says are being actively exploited. The update includes five Critical, 52 Important and two Moderate fixes, addressing privilege escalation, remote code execution, spoofing and information disclosure. Microsoft and external researchers reported several actively exploited CVEs; CISA has added them to its KEV catalog with a March 3, 2026 remediation deadline for federal agencies.

🔒 Microsoft released updates to fix six actively exploited zero-day vulnerabilities, three of which have been publicly disclosed. The issues include security feature bypasses in Windows Shell, MSHTML and Word, plus elevation-of-privilege and denial-of-service flaws affecting DWM, Remote Access Connection Manager and Remote Desktop Services. None are rated critical and only five of 58 patches this month were classed as critical. Administrators should prioritise applying updates and monitoring for exploitation.

🔒 Microsoft’s February 2026 Patch Tuesday delivers 60 fixes, including six vulnerabilities the vendor says are actively exploited. Three are security feature bypass flaws in Windows Shell, MSHTML and Office OLE mitigations; two permit local elevation to System, and one enables local denial-of-service. Experts note patches are straightforward and require no post-patch configuration, but prioritization of the bypasses and cloud-related issues is urgent.

🔔 Microsoft released its February 2026 security updates addressing 59 vulnerabilities across Windows and cloud products, including two Critical issues in ACI Confidential Containers. Several vulnerabilities are reported as actively exploited and others have been publicly disclosed, impacting components such as Windows Shell, MSHTML, Office, Azure, Hyper-V, and GitHub Copilot. Talos is publishing a new Snort ruleset to detect exploitation attempts; administrators should apply Microsoft patches and update intrusion detection signatures promptly.

🔒 Microsoft released February 2026 Patch Tuesday updates addressing more than 50 vulnerabilities, including six actively exploited zero-days. Patches cover security feature bypasses in Windows Shell, MSHTML and Word, elevation-of-privilege flaws in Remote Desktop Services and Desktop Window Manager, and a denial-of-service risk in the Remote Access Connection Manager. Administrators and developers are urged to prioritize testing and deployment, maintain recent backups, and apply least-privilege controls to limit exposure, particularly for AI-assisted development workflows.

🔒 Analysis by Huntress shows SolarWinds Web Help Desk instances are being actively exploited through a chain of zero‑day and previously disclosed deserialization flaws from late 2025 and January. The incidents combine two January zero‑days—CVE-2025-40551 (deserialization RCE) and CVE-2025-40536 (authentication bypass)—with the earlier CVE-2025-26399. Organizations should urgently upgrade to WHD 2026.1, follow SolarWinds' release notes, reset service and admin credentials, and treat any unexpected Velociraptor, Cloudflared, or Zoho Assist activity and silent MSI installations as indicators of compromise.

🔒 The European Commission disclosed a late-January cyberattack that targeted its mobile device management (MDM) platform. Attackers may have accessed names and phone numbers of some staff, though the Commission says there is no evidence that mobile devices themselves were compromised; the incident was contained and the system cleaned within nine hours. Investigators say the breach could be linked to actively exploited vulnerabilities in Ivanti Endpoint Manager Mobile (EPMM), with public exploit code and high-severity CVEs reported.

🔍 FortiGuard Labs observed a phishing campaign delivering a new XWorm RAT variant via malicious Excel attachments that exploit CVE-2018-0802 to execute embedded shellcode. The chain uses an obfuscated HTA and PowerShell to load a fileless .NET module, which downloads a PE in memory and uses process hollowing into Msbuild.exe to run XWorm. The RAT establishes AES-encrypted C2, supports extensive commands and plugins, and enables data theft, remote control, DDoS, and ransomware operations. Fortinet protections including FortiMail, AV, IPS, and Web Filtering are effective against observed indicators.

⚠️ CISA added six Microsoft-related vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog on February 10, 2026, citing evidence of active exploitation. The entries include CVE-2026-21510, CVE-2026-21513, CVE-2026-21514, CVE-2026-21519, CVE-2026-21525, and CVE-2026-21533, affecting Windows, MSHTML, and Office components. Federal agencies must remediate KEV entries under BOD 22-01, and CISA urges all organizations to prioritize patching to reduce exposure.

⚠ AVEVA's PI Data Archive contains an uncaught-exception vulnerability (CVE-2026-1507) that can allow an unauthenticated remote attacker to crash PI core services and cause denial of service. Affected versions include PI Server <=2018_SP3_Patch_7, 2023 (including 2023_Patch_1), and 2024. The issue has a CVSS 3.1 base score of 7.5 (High). AVEVA recommends upgrading to PI Server 2024 R2 or applying vendor patches and restricting inbound access to TCP port 5450.

🔒 SmarterTools confirmed a network breach by the Warlock (aka Storm-2603) ransomware group after attackers exploited an unpatched SmarterMail instance on January 29, 2026. A single, unpatched VM allowed lateral movement to about a dozen Windows servers across the office network and a secondary QC data center, with hosted SmarterTrack customers most affected. Operators staged tools including Velociraptor and deployed a locker after gaining Active Directory control. SmarterTools urges immediate upgrade to Build 9526 and isolation of mail servers to limit further ransomware deployment.

⚠️ Researchers report attackers exploiting critical SolarWinds Web Help Desk (WHD) remote code execution flaws (CVE-2025-40551 and CVE-2025-26399) to gain access to at least three organizations. After initial compromise the actor installed Zoho ManageEngine Assist and used Cloudflare tunnels alongside an outdated Velociraptor build as a command-and-control platform. The intruders disabled Defender and the Windows Firewall, deployed persistence mechanisms including scheduled tasks and SSH backdoors, and researchers advise upgrading WHD to 2026.1, removing public admin exposure, and rotating credentials.

🔒 Microsoft reported a multi-stage intrusion that exploited internet‑exposed SolarWinds Web Help Desk instances to gain unauthenticated remote code execution and lateral access. Exploitation spawned PowerShell which used BITS to download payloads, and attackers deployed legitimate Zoho ManageEngine components to maintain persistent remote control. They enumerated domain users, established reverse SSH and RDP persistence, performed DLL side‑loading to dump LSASS, and in at least one case executed a DCSync. Organizations are advised to patch WHD, remove unauthorized RMM tools, rotate service and admin credentials, and isolate compromised systems.