CVE-2021-26701

.NET Core Remote Code Execution Vulnerability

Score

CVSS 3.1 9.8 Critical

Status

Modified - secure@microsoft.com

Published

2021-02-25

Last modified

2026-05-28

Affected products

• Fedora (Fedoraproject)
• .net (Microsoft)
• .net Core (Microsoft)
• Powershell Core (Microsoft)
• Visual Studio 2017 (Microsoft)
• Visual Studio 2019 (Microsoft)

References

• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S2AZOUKMCHT2WBHR7MYDTY…
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TW3ZSJTTMZAFKGW7NJWTVV…
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UBOSSX7U6BSHV5RI74FCOW…
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WA5WQJVHUL5C4XMJTLY3C6…
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XPUKFHIGP5YNJRRFWKDJ2X…
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YLFATXASXW4OV2ZBSRP4G5…
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26701