Cisco has released an urgent security advisory addressing a critical vulnerability in its Secure Firewall Management Center (FMC) software. This severe flaw allows unauthenticated remote attackers to execute arbitrary code with full root privileges. CVE-2026-20131 is a critical vulnerability with a CVSS score of 10.0, stemming from insecure deserialization (CWE-502) and is exploitable remotely without […] The post Cisco Secure Firewall Vulnerability Allows Remote Code Execution as Root User appeared first on Cyber Security News.