CVE-2021-26701

Published: Feb 25, 2021Modified: Jun 17, 2026

9.8

Vector

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

Exploitability: 3.9 / Impact: 5.9

Source: NVD (Secondary)

Description

.NET Core Remote Code Execution Vulnerability

Affected (10)

Products: Microsoft: .net, .net Core, Powershell Core, Visual Studio 2019 · Fedoraproject: Fedora

4 products

Powershell Core

Visual Studio 2019

1 product

Configuration A

7 vulnerable

Vulnerable Software	Affected Versions
Microsoft .net	5.0 ≤ version < 5.0.4
Microsoft .net Core	2.1 ≤ version < 2.1.28
Microsoft .net Core	3.1 ≤ version < 3.1.15
Microsoft Powershell Core	Version 7.0
Microsoft Powershell Core	Version 7.1
Microsoft Visual Studio 2019	16.0 ≤ version ≤ 16.9
Microsoft Visual Studio 2019	All versions

Configuration B

3 vulnerable

Vulnerable Software	Affected Versions
Fedoraproject Fedora	Version 32
Fedoraproject Fedora	Version 33
Fedoraproject Fedora	Version 34

References (14)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S2AZOUKMCHT2WBHR7MYDTYXWOBHZW5P5/

Source: secure@microsoft.com

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TW3ZSJTTMZAFKGW7NJWTVVFZUYYU2SJZ/

Source: secure@microsoft.com

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UBOSSX7U6BSHV5RI74FCOW4ITJ5RRJR5/

Source: secure@microsoft.com

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WA5WQJVHUL5C4XMJTLY3C67R4WP35EF4/

Source: secure@microsoft.com

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XPUKFHIGP5YNJRRFWKDJ2XRS4WTFJNNK/

Source: secure@microsoft.com

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YLFATXASXW4OV2ZBSRP4G55HJH73QPBP/

Source: secure@microsoft.com

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26701

Source: secure@microsoft.com

PatchVendor Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S2AZOUKMCHT2WBHR7MYDTYXWOBHZW5P5/

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

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TW3ZSJTTMZAFKGW7NJWTVVFZUYYU2SJZ/

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

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UBOSSX7U6BSHV5RI74FCOW4ITJ5RRJR5/

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

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WA5WQJVHUL5C4XMJTLY3C67R4WP35EF4/

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

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XPUKFHIGP5YNJRRFWKDJ2XRS4WTFJNNK/

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

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YLFATXASXW4OV2ZBSRP4G55HJH73QPBP/

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

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26701

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

PatchVendor Advisory

Timeline

No history available yet.