CVE-2026-76433: Cisco Identity Services Engine

Medium severity, CVSS 5.3. EPSS: 1.3% chance of exploitation in the next 30 days.

A vulnerability in the client provisioning download feature of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to access protected files on an affected device. This vulnerability is due to insufficient validation of directory traversal character sequences in a user-supplied path when the software processes provisioning resource requests. An attacker could exploit this vulnerability by sending a crafted request to the provisioning download service. A successful exploit could allow the attacker to access protected files without authentication, potentially exposing sensitive information.

Affected products

• Cisco Identity Services Engine: from 3.1.0, before 3.3.0 (fixed in 3.3.0); version 3.3.0 only; version 3.4.0 only; version 3.5.0 only
• Cisco Identity Services Engine Passive Identity Connector: from 3.1.0, before 3.3.0 (fixed in 3.3.0); version 3.3.0 only; version 3.4.0 only

Published 2026-09-16. Last modified 2026-09-28.