CVE-2026-65810

Published: Aug 11, 2026Modified: Aug 14, 2026

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: NVD

Description

Relative path traversal in .NET Framework allows an unauthorized attacker to elevate privileges locally.

Affected (7)

Products: Microsoft: .net Framework

1 product

Configuration C

1 platform

Running on/with	Platform Versions
Microsoft Windows 10 1809	All versions

Configuration D

4 vulnerable

Vulnerable Software	Affected Versions
Microsoft .net Framework	Version 4.6.2
Microsoft .net Framework	Version 4.7.1
Microsoft .net Framework	Version 4.7.2
Microsoft .net Framework	Version 4.7

Configuration E

3 platform

Running on/with	Platform Versions
Microsoft Windows 10 1809	All versions
Microsoft Windows 10 1809	All versions
Microsoft Windows Server 2019	All versions

Configuration F

1 vulnerable · 14 platform

Vulnerable Software	Affected Versions
Microsoft .net Framework	Version 3.5

Running on/with	Platform Versions
Microsoft Windows 10 21h2	All versions
Microsoft Windows 10 21h2	All versions
Microsoft Windows 10 21h2	All versions
Microsoft Windows 10 22h2	All versions
Microsoft Windows 10 22h2	All versions
Microsoft Windows 10 22h2	All versions
Microsoft Windows 11 23h2	All versions
Microsoft Windows 11 23h2	All versions
Microsoft Windows 11 24h2	All versions
Microsoft Windows 11 24h2	All versions
Microsoft Windows 11 25h2	All versions
Microsoft Windows 11 25h2	All versions
Microsoft Windows Server 2022	All versions
Microsoft Windows Server 2025	All versions

Configuration G

1 vulnerable · 5 platform

Vulnerable Software	Affected Versions
Microsoft .net Framework	Version 4.8

Running on/with	Platform Versions
Microsoft Windows 10 1607	All versions
Microsoft Windows 10 1607	All versions
Microsoft Windows Server 2012	All versions
Microsoft Windows Server 2012	Version r2
Microsoft Windows Server 2016	All versions

Configuration H

1 vulnerable · 2 platform

Vulnerable Software	Affected Versions
Microsoft .net Framework	Version 4.8.1

Running on/with	Platform Versions
Microsoft Windows 11 26h1	All versions
Microsoft Windows 11 26h1	All versions

Related CWEs

Relative Path Traversal

The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory.

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65810

Source: secure@microsoft.com

PatchVendor Advisory

Timeline

No history available yet.