Local privilege escalation via heap overflow

Heap-based buffer overflow in Windows DHCP Client in Microsoft Windows allows local users to gain elevated privileges via unspecified local vectors. Microsoft has disclosed the flaw only as a heap-based buffer overflow in the DHCP client and has not published the affected function, input field, or the operation that overruns heap memory. Exploitation requires local authenticated execution on an affected Windows 11 or Windows Server 2025 system, and successful exploitation grants high-privilege access with broad impact on the local system context.