Cisco patches max-severity ISE flaw, the second critical zero-day this week

Cisco released patches for an actively exploited authentication bypass vulnerability in its Cisco Identity Services Engine (ISE) platform, which is used for enterprise network control and policy enforcement. This is the second zero-day flaw Cisco has been forced to release emergency patches for this week, after fixing a critical vulnerability in its Secure Email Gateway appliance . The Cisco ISE flaw, tracked as CVE-2026-76460 , has the maximum severity score of 10.0 on the CVSS scale and can be