CISA added two Linux Kernel vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog based on evidence of active exploitation: CVE-2025-39964, a race condition flaw, and CVE-2026-53266, an out-of-bounds write flaw. CISA describes these vulnerability types as a frequent attack vector for malicious cyber actors and a significant…
CISA added one vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog on 2026-09-16 based on evidence of active exploitation: CVE-2026-58704, an improper authorization vulnerability in Google Pixel. CISA describes this vulnerability type as a frequent attack vector for malicious cyber actors and a significant risk to the feder…
CISA added one vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog on 2026-09-18 based on evidence of active exploitation: CVE-2025-39682, an Improper Check for Unusual or Exceptional Conditions flaw in the Linux Kernel. CISA describes this vulnerability type as a frequent attack vector for malicious cyber actors and a sign…
CISA added one vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog on 2026-10-01, citing evidence of active exploitation: CVE-2026-104286, a path traversal flaw in Fortinet FortiMail. CISA describes this vulnerability type as a frequent attack vector for malicious cyber actors and a significant risk to the federal enterpris…
CISA added one vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog on 2026-09-29, citing evidence of active exploitation: CVE-2026-86950, an out-of-bounds write flaw affecting multiple Apple products. CISA describes this vulnerability type as a frequent attack vector for malicious cyber actors and a significant risk to the …
CISA added one vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog on 2026-09-30, citing evidence of active exploitation: CVE-2026-76504, a hex encoding vulnerability in Cisco Catalyst SD-WAN Manager. CISA describes this vulnerability type as a frequent attack vector for malicious cyber actors and a significant risk to the …
CISA added two Zammad GmbH Zammad vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog based on evidence of active exploitation: CVE-2026-102489, a session fixation flaw, and CVE-2026-102490, an improper privilege management flaw. CISA describes these vulnerability types as frequent attack vectors for malicious cyber actor…
CISA added one vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog on 2026-10-15, citing evidence of active exploitation: CVE-2026-21589, an Atlassian Multiple Products flaw in which files or directories are accessible to external parties. CISA describes this vulnerability type as a frequent attack vector for malicious cybe…
F5 released out-of-band security patches for multiple NGINX flaws, including three critical vulnerabilities: CVE-2026-15176 and CVE-2026-97205 in the ngxhttpv3module, and CVE-2026-93479 in the NGINX map directive. Unprivileged remote attackers can exploit them against systems with non-default configurations to cause denial of service or, …
CISA added three vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog based on evidence of active exploitation. Two affect JFrog Artifactory: CVE-2026-42016 (incorrect authorization) and CVE-2026-42018 (improper authentication). The third is CVE-2026-84869 in ConnectWise ScreenConnect (improper privilege management and mis…
CISA added two vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog based on evidence of active exploitation: CVE-2026-65660, a code injection flaw in Microsoft SharePoint, and CVE-2026-67279, an improper enforcement of behavioral workflow flaw in MikroTik RouterOS. CISA describes these vulnerability types as a frequent at…
CISA added two vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog based on evidence of active exploitation: CVE-2026-5430, a path traversal flaw in multiple WSO2 products, and CVE-2026-71362, an incorrect authorization flaw in Adobe Commerce and Magento. CISA describes these vulnerability types as a frequent attack vecto…
CISA added two vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog based on evidence of active exploitation: CVE-2026-96951, a command injection flaw in Microsoft Windows, and CVE-2026-104935, an authentication bypass by spoofing in Ivanti Connect Secure. CISA describes these vulnerability types as a frequent attack vecto…
Palo Alto Networks Unit 42 reports that a suspected advanced actor tracked as CL-STA-0954 (aka UNC5820) deployed a previously unreported memory-resident ARM64 implant, PEERSTITCH, on Fortinet FortiGate firewalls. The group exploited the FortiOS path traversal flaw CVE-2025-61624 for the final stage. The intrusion hit a telecommunications …
Tenable's Cybersecurity Awareness Month blog summarizes government guidance on defending critical infrastructure against nation-state and AI-assisted attacks. Per a joint US government advisory (published in April, updated in July), Iran-affiliated APT groups have attacked US water, energy and government facilities since Operation Epic Fu…
F5 Labs, using attack telemetry from Efflux's global sensor network, analyzed the most exploited vulnerabilities in July 2025 and found that nearly all top-scanned CVEs are HTTP-based RCE or command injection flaws in web interfaces. CVE-2017-9841 (PHPUnit) was the most exploited, followed by CVE-2023-1389 (TP-Link Archer AX21), CVE-2022-…
Unit 42 detailed a multi-stage intrusion in September 2024 against a telecommunications managed service provider, tracked as CL-STA-0954 (aka UNC5820). The attackers gained initial access by exploiting CVE-2024-47575 (FortiJump) on a central FortiManager and exfiltrated an archive with running configurations, credentials and private keys …
A joint advisory (AA26-281A) attributes China-based malicious cyber activity to Integrity Technology Group (Integrity Tech), a for-profit company with links to the Chinese government. The company builds and sells tools, hosts infrastructure and compromises networks worldwide. The actors' TTPs are consistent with Flax Typhoon, Ethereal Pan…
Microsoft released updates fixing more than 1,400 vulnerabilities in Windows and other software, far above September's record of nearly 1,000 fixes. Only one flaw is a confirmed zero-day exploited in the wild: CVE-2026-96951, a security feature bypass in Windows Shell affecting Windows 10, Windows 11 and some Windows Server versions. At l…
NGINX released versions 1.30.6 (stable) and 1.31.7 (mainline) on October 14 to fix five vulnerabilities, one of which has been present in every release since May 2005. Three are memory-corruption bugs that F5 says could crash a worker process or possibly allow code execution. A fourth is a TLS session-ticket flaw that may let a forged ses…