
🛡️ **CISCO SECURE EMAIL GATEWAY ROOT RCE — ZERO-DAY ACTIVELY EXPLOITED**
Published Tuesday, September 15, 2026 at 05:28 AM PT BLUF: Cisco Secure Email Gateway contains an unauthenticated remote code execution vulnerability (CVE-2026-76461) currently exploited in active attacks. Attacker achieves root-level access without credentials. Patch immediately on all deployed instances. DETAILS CVE-2026-76461 affects Cisco Secure Email Gateway; allows unauthenticated remote code execution at root privilege level Vulnerability is under active exploitation in the wild; confirmed in real-world attacks No user authentication required to trigger the flaw—attacker contacts affected system directly Cisco has released patches; consult Cisco security advisories for affected versions and build numbers (advisory details not contained in current reporting aggregates) Remote compromise grants full system access and code execution capability IMPACT ...