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#5 Dark Reading general September 18, 2026 at 19:26 UTC

Cisco Zero-Day Highlights API Endpoint Authentication Issues

By Rob Wright

AI Summary

Cisco disclosed CVE-2026-76460, a CVSS 10.0 authentication bypass zero-day in its Identity Services Engine (ISE), stemming from improper API endpoint authentication. ISE is widely deployed as a network access control solution, making a maximum-severity unauthenticated flaw particularly dangerous for enterprise network perimeters.

Relevance score: 84.0/100

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