CVE-2026-20241
Cisco Identity Services Engine Authorization Bypass Vulnerability
Description
A vulnerability in the authorization mechanism of Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an unauthenticated, remote attacker to obtain an endpoint identity certificate. This vulnerability is due to improper authorization checks. An attacker could exploit this vulnerability by sending a crafted request to an affected device. A successful exploit could allow the attacker to bypass authorization to obtain an endpoint certificate.
Weakness: CWE-285
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 Authorization Bypass Vulnerability
Cisco’s rating: Medium (advisory CVSS 5.3) · Published Nov 4, 2026
Bug ID: CSCwu26099
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from