CVE-2026-20093
Cisco Integrated Management Controller Authentication Bypass Vulnerability
Description
A vulnerability in the change password functionality of Cisco Integrated Management Controller (IMC) could allow an unauthenticated, remote attacker to bypass authentication and gain access to the system as Admin. This vulnerability is due to incorrect handling of password change requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to bypass authentication, alter the passwords of any user on the system, including an Admin user, and gain access to the system as that user.
Weakness: CWE-20
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco Enterprise NFV Infrastructure Software | Routing & Switching | cna-assigner |
| Cisco | Cisco Unified Computing System (UCS) | Other Products | cna-assigner |
Vendor-reported products (3)
- Cisco · Cisco Enterprise NFV Infrastructure Software
- Cisco · Cisco Unified Computing System (Standalone)
- Cisco · Cisco Unified Computing System E-Series Software (UCSE)
Vendor advisory
cisco-sa-cimc-auth-bypass-AgG2BxTn
Cisco Integrated Management Controller Authentication Bypass Vulnerability
Cisco’s rating: Critical (advisory CVSS 9.8) · Published Apr 1, 2026
Bug IDs: CSCwq55648 , CSCwq55659 , CSCwq68912
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from