CVE-2021-42277: Microsoft Visual Studio

Medium severity, CVSS 5.5. EPSS: 0.9% chance of exploitation in the next 30 days.

Diagnostics Hub Standard Collector Elevation of Privilege Vulnerability

Affected products

• Microsoft Visual Studio: version 2015 only
• Microsoft Visual Studio 2017: from 15.0, up to and including 15.9
• Microsoft Visual Studio 2019: from 16.0, up to and including 16.11
• Microsoft Windows 10: affected versions not specified; version 20h2 only; version 21h1 only; version 1607 only; version 1809 only; version 1909 only; …
• Microsoft Windows 11: affected versions not specified
• Microsoft Windows Server 2016: affected versions not specified; version 20h2 only; version 2004 only
• Microsoft Windows Server 2019: affected versions not specified
• Microsoft Windows Server 2022: affected versions not specified

Published 2021-11-10. Last modified 2026-08-19.