Cisco has warned that a new critical vulnerability impacting AsyncOS Software for Cisco Secure Email Gateway has come under active exploitation in the wild.

The vulnerability, tracked as CVE-2026-76461, carries a CVSS score of 9.8 out of a maximum of 10.0. It has been described as a case of insufficient validation in the email parsing logic that could allow an unauthenticated, remote attacker



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