CVE-2026-76460
Cisco Identity Services Engine Authentication Bypass Vulnerability
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.
Weakness: CWE-648
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco ISE Passive Identity Connector | Identity / IAM / MFA | cna-assigner |
| Cisco | Cisco Identity Services Engine (ISE) Check your version | Identity / IAM / MFA | cna-assigner |
Vendor-reported products (2)
- Cisco · Cisco Identity Services Engine Software
- Cisco · Cisco ISE Passive Identity Connector
Vendor advisory
Cisco Identity Services Engine Authentication Bypass Vulnerability
Cisco’s rating: Critical (advisory CVSS 10.0) · Published Sep 16, 2026
Bug ID: CSCww39530
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from