Cisco Secure FMC CVE-2026-20316 Exploited

Cisco Secure FMC CVE-2026-20316 is under active attack via hardcoded credentials that chain into a CVSS 10.0 root bypass. Patch now.

Cisco Secure FMC CVE-2026-20316 is under confirmed active exploitation: a hardcoded, low-privilege account built into every on-premises Secure Firewall Management Center gives an unauthenticated attacker a foothold — and in the same advisory cycle, Cisco quietly reactivated a five-month-old, maximum-severity root-level bypass in the same product, sharing an identical indicator of compromise. CISA added the…

Read More