CISA Adds BeyondTrust Remote Support and Fortinet Flaws to KEV Catalog Following Zero-Day Exploitation by ARMORY CASTLE
The US Cybersecurity and Infrastructure Security Agency has added two vulnerabilities affecting Fortinet and BeyondTrust products to its Known Exploited Vulnerabilities catalog. CVE-2026-102764 is an authentication bypass flaw in BeyondTrust Remote Support that allows remote attackers to manipulate appliance files without credentials due to insufficient source validation. BeyondTrust released an advisory on October 15, 2026, rating the issue 9.3 on CVSS v4.0 as Critical. Mandiant attributes the zero-day exploitation to the suspected Chinese group ARMORY CASTLE, which deployed web shells for persistence and privilege escalation in late August. The second CVE, CVE-2025-61624, also appears on the KEV list but lacks further public technical details in the current advisory. Organizations are urged to apply patches immediately to prevent further compromise.
Security NEXTOct 19, 2026Translated from Japanese