CVE-2026-76423 — Cisco ISE API Authentication Bypass Vulnerability
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 vulne…
Published: 2026-09-16 · CVSS: 10.0 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7