🛡️ **CRITICAL: Cisco Secure Email Gateway Zero-Day (CVE-2026-76461) Under Active Exploitation — Root RCE**
Published Tuesday, September 15, 2026 at 05:31 PM PT BLUF: Cisco Secure Email Gateway appliances are under active remote exploitation via CVE-2026-76461, a critical unauthenticated root RCE flaw triggered by malicious emails. Patch immediately if your organization runs this appliance; exploitation is occurring in the wild as of patch release. Attackers can completely take over affected devices without authentication. ...