SB2025011524 - Privilege escalation in Microsoft Windows NTLM V1
Published: January 15, 2025
Security Bulletin ID
SB2025011524
CSH Severity
High
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) Incorrect Implementation of Authentication Algorithm (CVE-ID: CVE-2025-21311)
CWE-ID: CWE-303 - Incorrect Implementation of Authentication Algorithm
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:Amber
The vulnerability allows a remote attacker to escalate privileges.
The vulnerability exists due to incorrect implementation of authentication algorithm in Windows NTLM V1. A remote attacker can gain elevated privileges on the target system.
Remediation
Install update from vendor's website.