by Kastro CVE-2026-76423
Cisco Cisco Identity Services Engine Software — Cisco ISE API Authentication Bypass Vulnerability
Description · from the CVE record
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.
Affected
ProductAffectedFixed inSource
Cisco Identity Services Engine Software3.1.0–CNA
Cisco Identity Services Engine Software3.1.0 p1–CNA
Cisco Identity Services Engine Software3.1.0 p3–CNA
Cisco Identity Services Engine Software3.1.0 p2–CNA
Cisco Identity Services Engine Software3.2.0–CNA
Cisco Identity Services Engine Software3.1.0 p4–CNA
Cisco Identity Services Engine Software3.1.0 p5–CNA
Cisco Identity Services Engine Software3.2.0 p1–CNA
Cisco Identity Services Engine Software3.1.0 p6–CNA
Cisco Identity Services Engine Software3.2.0 p2–CNA
Cisco Identity Services Engine Software3.1.0 p7–CNA
Cisco Identity Services Engine Software3.3.0–CNA
Scores by source
cisco (CNA)10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total