CVE-2025-55240: Microsoft Visual Studio 2017

High severity, CVSS 7.3. EPSS: 0.4% chance of exploitation in the next 30 days.

Improper access control in Visual Studio allows an authorized attacker to elevate privileges locally.

Affected products

• Microsoft Visual Studio 2017: from 15.0, before 15.9.77 (fixed in 15.9.77)
• Microsoft Visual Studio 2019: from 16.0, before 16.11.52 (fixed in 16.11.52)
• Microsoft Visual Studio 2022: from 17.10.0, before 17.10.20 (fixed in 17.10.20); from 17.12.0, before 17.12.13 (fixed in 17.12.13); from 17.14.0, before 17.14.17 (fixed in 17.14.17)

Published 2025-10-14. Last modified 2026-06-17.