CVE-2026-50527

Published: Jul 14, 2026Modified: Oct 28, 2026

7.5

Vector

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

Exploitability: 3.9 / Impact: 3.6

Source: secure@microsoft.com (Secondary)

Description

Stack-based buffer overflow in .NET Framework allows an unauthorized attacker to deny service over a network.

Affected (18)

Products: Microsoft: .net Framework, .net, Visual Studio 2022, Visual Studio 2026

4 products

Visual Studio 2022

Visual Studio 2026

Configuration A

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 B

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 2012	All versions
Microsoft Windows Server 2012	Version r2

Configuration C

2 vulnerable · 15 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 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 11 26h1	All versions
Microsoft Windows 11 26h1	All versions
Microsoft Windows Server 2022	All versions

Configuration D

2 vulnerable · 10 platform

Vulnerable Software	Affected Versions
Microsoft .net Framework	Version 3.5
Microsoft .net Framework	Version 4.8

Running on/with	Platform Versions
Microsoft Windows 10 1809	All versions
Microsoft Windows 10 1809	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 10 22h2	All versions
Microsoft Windows Server 2019	All versions
Microsoft Windows Server 2022	All versions

Configuration E

2 vulnerable · 6 platform

Vulnerable Software	Affected Versions
Microsoft .net Framework	Version 3.5
Microsoft .net Framework	Version 4.7.2

Running on/with	Platform Versions
Microsoft Windows 10 1607	All versions
Microsoft Windows 10 1607	All versions
Microsoft Windows 10 1809	All versions
Microsoft Windows 10 1809	All versions
Microsoft Windows Server 2016	All versions
Microsoft Windows Server 2019	All versions

Configuration F

1 vulnerable · 2 platform

Vulnerable Software	Affected Versions
Microsoft .net Framework	Version 3.5

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

Configuration G

2 vulnerable · 3 platform

Vulnerable Software	Affected Versions
Microsoft .net	8.0.0 ≤ version < 8.0.29
Microsoft .net	9.0.0 ≤ version < 9.0.18

Running on/with	Platform Versions
Apple Macos	All versions
Linux Linux Kernel	All versions
Microsoft Windows	All versions

Configuration H

1 vulnerable · 2 platform

Vulnerable Software	Affected Versions
Microsoft .net	10.0.0 ≤ version < 10.0.6

Running on/with	Platform Versions
Apple Macos	All versions
Linux Linux Kernel	All versions

Configuration I

3 vulnerable

Vulnerable Software	Affected Versions
Microsoft Visual Studio 2022	17.12.0 ≤ version < 17.12.22
Microsoft Visual Studio 2022	17.14.0 ≤ version < 17.14.36
Microsoft Visual Studio 2026	18.7.0 ≤ version < 18.7.4

Related CWEs

Stack-based Buffer Overflow

A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50527

Source: secure@microsoft.com

PatchVendor Advisory

Timeline

No history available yet.