CVE-2026-54121

Improper authorization in Active Directory Certificate Services (AD CS) enables an authenticated attacker to escalate privileges within the network, potentially leading to unauthorized access and control over sensitive resources. Organizations utilizing AD CS should prioritize addressing this vulnerability to mitigate the risk of privilege escalation attacks that could compromise their security posture. Immediate action is recommended for environments where AD CS is deployed, particularly those with high-value assets or sensitive data.