ACTIVELY EXPLOITED

CVE-2022-34713: Microsoft Windows Support Diagnostic Tool (MSDT) Remote Code Execution Vulnerability

Facts
VendorMicrosoft
ProductWindows
Actively exploitedYes
Added to CISA KEV9 Aug 2022
CISA federal deadline30 Aug 2022

Required action (CISA's text)

Apply updates per vendor instructions.

Description (NVD)

A remote code execution vulnerability exists when Microsoft Windows MSDT is called using the URL protocol from a calling application.

SOURCES

Other Microsoft flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.