CVE-2026-20193
Cisco Identity Services Engine Authentication Bypass Vulnerability
Description
A vulnerability in the RADIUS Policy API endpoints of Cisco ISE could allow an authenticated, remote attacker with read-only Administrator privileges to gain unauthorized access to sensitive information on an affected device. This vulnerability is due to improper role-based access control (RBAC) permissions on the RADIUS Policy API endpoints. An attacker could exploit this vulnerability by bypassing the web-based management interface and directly calling an affected endpoint. A successful exploit could allow the attacker to gain unauthorized read access to sensitive RADIUS Policy details that are restricted for their role.
Weakness: CWE-862
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco Identity Services Engine (ISE) Check your version | Identity / IAM / MFA | cna-assigner |
Vendor-reported products (1)
- Cisco · Cisco Identity Services Engine Software
Vendor advisory
cisco-sa-ise-unauth-bypass-uxjRXGpb
Cisco Identity Services Engine Authentication Bypass Vulnerabilities
Cisco’s rating: Medium (advisory CVSS 5.3) · Published May 6, 2026
Bug IDs: CSCwr77441 , CSCwr77445
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from