Vulnerability Analysis: CVE-2026-76461 – Critical Cisco Secure Email Gateway Vulnerability Exploited
Introduction Email remains one of the primary vectors for enterprise cyberattacks, making secure email gateways critical perimeter defenses. Recently, a severe security flaw identified as CVE-2026-76461 was discovered in Cisco Secure Email Gateway (formerly Cisco Email Security Appliance / ESA). Rated with a maximum-severity CVSS score of 9.8 (Critical), this vulnerability allows unauthenticated, remote attackers to execute arbitrary commands at the highest system privileges. Both Cisco and the