CVE-2022-30190: Microsoft Windows Support Diagnostic Tool (MSDT) Remote Code Execution Vulnerability

High severity, CVSS 7.8. Actively exploited: in CISA KEV since 2022-06-14. EPSS: 99.2% chance of exploitation in the next 30 days.

A remote code execution vulnerability exists when MSDT is called using the URL protocol from a calling application such as Word. An attacker who successfully exploits this vulnerability can run arbitrary code with the privileges of the calling application. The attacker can then install programs, view, change, or delete data, or create new accounts in the context allowed by the user’s rights. Please see the MSRC Blog Entry for important information about steps you can take to protect your system from this vulnerability.

Affected products

• Microsoft Windows 10 1507: before 10.0.10240.19325 (fixed in 10.0.10240.19325)
• Microsoft Windows 10 1607: before 10.0.14393.5192 (fixed in 10.0.14393.5192)
• Microsoft Windows 10 1809: before 10.0.17763.3046 (fixed in 10.0.17763.3046)
• Microsoft Windows 10 20h2: before 10.0.19042.1766 (fixed in 10.0.19042.1766)
• Microsoft Windows 10 21h1: before 10.0.19043.1766 (fixed in 10.0.19043.1766)
• Microsoft Windows 10 21h2: before 10.0.19044.1766 (fixed in 10.0.19044.1766)
• Microsoft Windows 11 21h2: before 10.0.22000.739 (fixed in 10.0.22000.739)
• Microsoft Windows 7: affected versions not specified
• Microsoft Windows 8.1: affected versions not specified
• Microsoft Windows Rt 8.1: affected versions not specified
• Microsoft Windows Server 2008: version r2 only
• Microsoft Windows Server 2012: affected versions not specified; version r2 only
• Microsoft Windows Server 2016: before 10.0.14393.5192 (fixed in 10.0.14393.5192)
• Microsoft Windows Server 2019: before 10.0.17763.3046 (fixed in 10.0.17763.3046)
• Microsoft Windows Server 2022: before 10.0.20348.770 (fixed in 10.0.20348.770)
• Microsoft Windows Server 20h2: before 10.0.19042.1766 (fixed in 10.0.19042.1766)

Published 2022-06-01. Last modified 2026-08-06.