CVE-2021-26434: Microsoft Visual Studio 2017

High severity, CVSS 7.8. EPSS: 0.9% chance of exploitation in the next 30 days.

Visual Studio Elevation of Privilege Vulnerability

Affected products

• 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

Published 2021-09-15. Last modified 2026-08-10.