Microsoft Warns of Critical Privilege Escalation Vulnerability in Windows Admin Center

Microsoft has issued a warning about a critical privilege escalation vulnerability in Windows Admin Center. The flaw allows attackers to elevate their privileges within the affected system. Microsoft classifies the issue as critical and advises administrators to apply updates. No specific exploitation in the wild, technical details of the vulnerability, or affected versions were disclosed in the notice. The article was published on February 18, 2026.