Cisco ISE Authentication Bypass Vulnerability Hits Root

A Cisco ISE authentication bypass vulnerability (CVSS 10.0) lets attackers reach root with no credentials. Active exploitation confirmed. Patch now.

A Cisco ISE authentication bypass vulnerability tracked as CVE-2026-76460 carries a perfect CVSS score of 10.0 and is already under active exploitation. An unauthenticated attacker can bypass Cisco Identity Services Engine’s web-based management interface entirely and, per Cisco’s own advisory, reach command execution as root. That is the one system in your network built to…

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