Cisco Identity Services Engine Authentication Bypass Vulnerability (Cisco Cisco Identity Services Engine Software)

CVE-2026-76460
CRITICAL 10.0CISA KEV ↗Exploited per ENISA since 2026-09-16

At a glance

Source
NVD
EPSS
EPSS 75.60 % · percentile 100 ()
State
PUBLISHED
Published
Updated
Assigner
cisco
NVD status
Analyzed

Description

A vulnerability in an API of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to bypass authentication. This vulnerability is due to insufficient authentication control on an API endpoint. An attacker could exploit this vulnerability by sending a crafted request to an affected API endpoint. A successful exploit could allow the attacker to gain unauthorized access to the affected device by bypassing the web-based management interface.

Weaknesses (CWE)

  • CWE-648 — Incorrect Use of Privileged APIs

References

Scores

VersionScoreVectorScored by
CVSS 3.1CRITICAL 10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:Hcisco
CVSS 3.1CRITICAL 10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HNVD · psirt@cisco.com (Secondary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Cisco · Cisco Identity Services Engine Softwareaffected 3.1.0 p8 ; affected 3.1.0 p9 ; affected 3.3 Patch 2 ; affected 3.3 Patch 1 ; affected 3.3 Patch 3 ; affected 3.4.0
Cisco · Cisco ISE Passive Identity Connectoraffected 3.4.0 ; affected 3.5.0

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
CISA Known Exploited VulnerabilitiesCC0 1.0
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD