Local privilege escalation via Kerberos heap overflow

Heap-based buffer overflow in Windows Kerberos in Microsoft Windows allows local authenticated users to gain SYSTEM privileges. Microsoft's public advisory identifies a heap overflow in the Kerberos component but does not disclose the specific routine, buffer, or attacker-controlled field that overruns heap memory. Exploitation requires local code execution with valid credentials or another authenticated foothold; published records describe privilege escalation only, with no disclosed remote trigger or user interaction requirement.