CVE-2026-76460 Cisco Identity Services Engine - Authentication Bypass

Cisco Identity Services Engine contains an authentication bypass caused by insufficient authentication control on an API endpoint, letting unauthenticated remote attackers gain unauthorized access, exploit requires crafted request to API endpoint.

CVSS base score 10.0 /10
Critical
CISA KEV
Exploited in the wild
Public exploit
Proof of concept available
Authentication
Not required
EPSS
14.03% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Broken Authentication
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Published
16 September 2026
Updated
15 October 2026
Weakness
CWE-648

Vendor fix

Update to the latest available version with the fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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