Cisco alerts on exploited ISE authentication bypass zero-day
🔒 Cisco has issued urgent updates for a maximum-severity Identity Services Engine vulnerability being actively exploited in the wild. The flaw (CVE-2026-76460) allows remote attackers to bypass authentication via a vulnerable API in Cisco ISE and ISE-PIC, enabling unauthorized access to the web-based management interface. Cisco PSIRT recommends immediate upgrades to fixed releases, and no workarounds are available.