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#1 The Hacker News general September 17, 2026 at 06:39 UTC

Cisco Warns of New Zero-Day ISE Auth Bypass (CVSS 10.0) Exploited in Active Attacks

By [email protected] (The Hacker News)

AI Summary

Cisco disclosed CVE-2026-76460, a CVSS 10.0 authentication bypass zero-day in Identity Services Engine (ISE) that allows unauthenticated remote attackers to bypass authentication via crafted API requests. This is the second actively exploited ISE zero-day disclosed in as many days, and ISE has now seen three actively exploited vulnerabilities since June 2025 — making it a critical priority for patching in enterprise environments.

Relevance score: 92.0/100

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