Untrusted pointer dereference in Windows Distributed File System (DFS) allows an unauthorized attacker to elevate privileges over a network.
Weakness
The product obtains a value from an untrusted source, converts this value to a pointer, and dereferences the resulting pointer.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Windows_10_1607 | Microsoft | * | 10.0.14393.9612 (excluding) |
| Windows_10_1809 | Microsoft | * | 10.0.17763.9376 (excluding) |
| Windows_10_21h2 | Microsoft | * | 10.0.19044.7807 (excluding) |
| Windows_10_22h2 | Microsoft | * | 10.0.19045.7807 (excluding) |
| Windows_11_23h2 | Microsoft | * | 10.0.22631.7652 (excluding) |
| Windows_11_24h2 | Microsoft | * | 10.0.26100.9711 (excluding) |
| Windows_11_25h2 | Microsoft | * | 10.0.26200.9711 (excluding) |
| Windows_11_26h1 | Microsoft | * | 10.0.28000.3231 (excluding) |
| Windows_11_26h2 | Microsoft | * | 10.0.26300.9711 (excluding) |
| Windows_server_2012 | Microsoft | - (including) | - (including) |
| Windows_server_2012 | Microsoft | r2 (including) | r2 (including) |
| Windows_server_2016 | Microsoft | * | 10.0.14393.9612 (excluding) |
| Windows_server_2019 | Microsoft | * | 10.0.17763.9376 (excluding) |
| Windows_server_2022 | Microsoft | * | 10.0.20348.5761 (excluding) |
| Windows_server_2025 | Microsoft | * | 10.0.26100.33650 (excluding) |
Extended Description
An attacker can supply a pointer for memory locations that the product is not expecting. If the pointer is dereferenced for a write operation, the attack might allow modification of critical state variables, cause a crash, or execute code. If the dereferencing operation is for a read, then the attack might allow reading of sensitive data, cause a crash, or set a variable to an unexpected value (since the value will be read from an unexpected memory location). There are several variants of this weakness, including but not necessarily limited to: