Null pointer dereference in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
Weakness
The product dereferences a pointer that it expects to be valid but is NULL.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Windows_10_21h2 | Microsoft | * | 10.0.19044.7058 (excluding) |
| Windows_10_22h2 | Microsoft | * | 10.0.19045.7058 (excluding) |
| Windows_11_23h2 | Microsoft | * | 10.0.22631.6783 (excluding) |
| Windows_11_24h2 | Microsoft | * | 10.0.26100.7979 (excluding) |
| Windows_11_25h2 | Microsoft | * | 10.0.26200.7979 (excluding) |
| Windows_11_26h1 | Microsoft | * | 10.0.28000.1719 (excluding) |
| Windows_server_2022 | Microsoft | * | 10.0.20348.4830 (excluding) |
| Windows_server_2022_23h2 | Microsoft | * | 10.0.25398.2207 (excluding) |
| Windows_server_2025 | Microsoft | * | 10.0.26100.32463 (excluding) |