CVE-2026-56650
7.8
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.8 / Impact: 5.9
Source: secure@microsoft.com (Secondary)
Description
Heap-based buffer overflow in Windows Network File System allows an authorized attacker to elevate privileges locally.
Affected (22)
Configuration A
| Vulnerable Software | Affected Versions |
|---|---|
| Before 10.0.14393.9339 | |
| Before 10.0.17763.9020 | |
| Before 10.0.19044.7548 | |
| Before 10.0.19045.7548 | |
| Before 10.0.26100.8875 | |
| Before 10.0.26200.8875 | |
| Before 10.0.28000.2269 | |
| All versions | |
| Before 10.0.14393.9339 | |
| Before 10.0.17763.9020 | |
| Before 10.0.20348.5386 | |
| Before 10.0.26100.33158 |
Related CWEs
CWE-122
Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
CWE-197
Numeric Truncation Error
Truncation errors occur when a primitive is cast to a primitive of a smaller size and data is lost in the conversion.
References (1)
Source: secure@microsoft.com
PatchVendor Advisory
Timeline
No history available yet.