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

CVE-2026-76423
CRITICAL 10.0

At a glance

Source
NVD
EPSS
EPSS 0.58 % · percentile 48 ()
State
PUBLISHED
Published
Updated
Assigner
cisco
NVD status
Awaiting Analysis

Description

A vulnerability in the REST API of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to gain administrative access to an affected device. This vulnerability is due to the REST API web service being exposed with insufficient authorization checks. An attacker could exploit this vulnerability by sending a crafted HTTP request to the exposed REST API port. A successful exploit could allow the attacker to read and modify ISE configuration and identity data with administrative privileges.

Weaknesses (CWE)

  • CWE-290 — Authentication Bypass by Spoofing

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

European references

CERT-FR advisories

Affected products

ProductVersions
Cisco · Cisco Identity Services Engine Softwareaffected 3.1.0 ; affected 3.1.0 p1 ; affected 3.1.0 p3 ; affected 3.1.0 p2 ; affected 3.2.0 ; affected 3.1.0 p4
Cisco · Cisco ISE Passive Identity Connectoraffected 3.2.0 ; affected 3.1.0 ; affected 3.3.0 ; affected 3.4.0 ; affected 3.5.0

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
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