CVE-2026-32177
7.3
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L
Exploitability: 1.8 / Impact: 5.5
Source: secure@microsoft.com (Secondary)
Description
Heap-based buffer overflow in .NET allows an unauthorized attacker to elevate privileges locally.
Affected (13)
Products: Microsoft: Visual Studio 2022, Visual Studio 2026, .net Framework, .net
Configuration A
| Vulnerable Software | Affected Versions |
|---|---|
| From 17.12.0 to 17.12.20 | |
| From 18.5.0 to 18.5.3 |
Configuration B
| Running on/with | Platform Versions |
|---|---|
Microsoft Windows 10 1607 | All versions |
Microsoft Windows Server 2016 | All versions |
Configuration C
| Vulnerable Software | Affected Versions |
|---|---|
| Version 4.6.2 |
Configuration D
| Vulnerable Software | Affected Versions |
|---|---|
| Version 4.8.1 |
| Running on/with | Platform Versions |
|---|---|
Microsoft Windows 10 21h2 | All versions |
Microsoft Windows 11 22h2 | All versions |
Microsoft Windows 11 23h2 | All versions |
Microsoft Windows 11 24h2 | All versions |
Microsoft Windows 11 25h2 | All versions |
Microsoft Windows 11 26h1 | All versions |
Microsoft Windows Server 2022 | All versions |
Configuration E
| Vulnerable Software | Affected Versions |
|---|---|
| Version 4.8 |
| Running on/with | Platform Versions |
|---|---|
Microsoft Windows 10 1809 | All versions |
Microsoft Windows 10 21h2 | All versions |
Microsoft Windows 10 22h2 | All versions |
Microsoft Windows Server 2019 | All versions |
Microsoft Windows Server 2025 | All versions |
Configuration F
| Vulnerable Software | Affected Versions |
|---|---|
| Version 3.5 |
| Running on/with | Platform Versions |
|---|---|
Microsoft Windows Server 2012 | All versions |
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-20
Improper Input Validation
The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly.
CWE-787
Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.
References (4)
Source: secure@microsoft.com
Vendor Advisory
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Timeline
No history available yet.