CVE-2023-21808

Published: Feb 14, 2023Modified: Jun 17, 2026

7.8

Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability: 1.8 / Impact: 5.9

Source: secure@microsoft.com (Secondary)

Description

.NET and Visual Studio Remote Code Execution Vulnerability

Affected (14)

Products: Microsoft: .net, Visual Studio 2017, Visual Studio 2019, Visual Studio 2022, .net Framework

5 products

Visual Studio 2017

Visual Studio 2019

Visual Studio 2022

Configuration A

7 vulnerable

Vulnerable Software	Affected Versions
Microsoft .net	Version 6.0.0
Microsoft .net	Version 7.0.0
Microsoft Visual Studio 2017	From 15.0 to 15.9.51
Microsoft Visual Studio 2019	From 16.0 to 16.11.24
Microsoft Visual Studio 2022	Version 17.0
Microsoft Visual Studio 2022	Version 17.2
Microsoft Visual Studio 2022	Version 17.4

Configuration C

3 platform

Running on/with	Platform Versions
Microsoft Windows 10 1809	All versions
Microsoft Windows Server 2016	All versions
Microsoft Windows Server 2019	All versions

Configuration F

21 platform

Running on/with	Platform Versions
Microsoft Windows 10 1507	All versions
Microsoft Windows 10 1507	All versions
Microsoft Windows 10 1511	All versions
Microsoft Windows 10 1511	All versions
Microsoft Windows 10 1607	All versions
Microsoft Windows 10 1607	All versions
Microsoft Windows 10 1703	All versions
Microsoft Windows 10 1703	All versions
Microsoft Windows 10 1709	All versions
Microsoft Windows 10 1709	All versions
Microsoft Windows 10 1803	All versions
Microsoft Windows 10 1803	All versions
Microsoft Windows 10 1809	All versions
Microsoft Windows 10 1809	All versions
Microsoft Windows 10 1909	All versions
Microsoft Windows 10 1909	All versions
Microsoft Windows 10 2004	All versions
Microsoft Windows 10 2004	All versions
Microsoft Windows 10 21h1	All versions
Microsoft Windows 10 21h1	All versions
Microsoft Windows 10 22h2	All versions

Configuration G

1 platform

Running on/with	Platform Versions
Microsoft Windows Server 2008	All versions

Configuration H

2 vulnerable · 13 platform

Vulnerable Software	Affected Versions
Microsoft .net Framework	Version 3.5
Microsoft .net Framework	Version 4.8.1

Running on/with	Platform Versions
Microsoft Windows 10 20h2	All versions
Microsoft Windows 10 20h2	All versions
Microsoft Windows 10 20h2	All 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 11 21h2	All versions
Microsoft Windows 11 21h2	All versions
Microsoft Windows 11 22h2	All versions
Microsoft Windows 11 22h2	All versions
Microsoft Windows Server 2022	All versions

Configuration I

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Microsoft .net Framework	Version 4.8

Running on/with	Platform Versions
Microsoft Windows Server 2012	Version r2

Configuration J

4 vulnerable · 2 platform

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

Running on/with	Platform Versions
Microsoft Windows Server 2008	Version r2 sp1
Microsoft Windows Server 2012	All versions

Related CWEs

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (2)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21808

Source: secure@microsoft.com

PatchVendor Advisory

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21808

Source: af854a3a-2127-422b-91ae-364da2661108

PatchVendor Advisory

Timeline

No history available yet.