Cisco Zero-Day Highlights API Endpoint Authentication Issues
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Exploited
What happened
Authentication bypass zero-day CVE-2026-76460 (CVSS 10.0) affects Cisco Identity Services Engine (ISE), the NAC platform controlling network access; all ISE deployments are at risk.
What to do now
Check affected versions in Cisco's advisory and patch ISE immediately; block ISE admin/API access from untrusted networks, review ISE auth logs for anomalies, and rotate admin credentials. Verify with the vendor advisory.
CVE references
- CVE-2026-76460
Original source
AI-assisted analysis, sources cited. Verify with the vendor advisory before acting.