Semperis Researcher Discovers Critical Active Directory Privilege Escalation Vulnerabilities

<p>ResetNightmare and KerberLoss exploit weaknesses in how identity systems interpret usernames and service names, potentially allowing attackers to disrupt services, weaken authentication, or impersonate privileged users. HOBOKEN, N.J., Aug. 26, 2026 /PRNewswire/ -- Semperis, the...</p>