Cisco reported a security vulnerability

Cisco published a Security Bulletin reporting a critical security vulnerability (CVE-2026-20316) affecting Cisco Secure Firewall Management Center (FMC) software. Exploitation of this vulnerability could allow an attacker to trigger sensitive information disclosure and security restriction bypass on the target system.

Cisco recommends that users follow the recommendations published in this Security Bulletin.

More information is available in the Cisco Security Bulletin - cisco.com.