SB2026040173 - Unauthorized password reset in Cisco Unified Computing System (UCS)
Published: April 1, 2026
Security Bulletin ID
SB2026040173
CSH Severity
Critical
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Missing authorization (CVE-ID: CVE-2026-20093)
CWE-ID: CWE-862 - Missing Authorization
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Red
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to missing authorization checks within the password change functionality of Cisco IMC. A remote non-authenticated attacker can send a specially crafted HTTP request and change password for arbitrary accounts on the system, including administrative accounts.
Remediation
Install update from vendor's website.