Cisco Secure Email Gateway Flaw Exploited in the Wild, Enables Root Command Execution

Cisco Secure Email Gateway has a critical vulnerability (CVE-2026-76461) with a 9.8 CVSS score in AsyncOS email parsing logic. Unauthenticated remote attackers can exploit it for root command execution. Active exploitation in the wild poses immediate risk to email infrastructure.

https://thehackernews.com/2026/09/cisco-secure-email-gateway-flaw.html