High MSRC-CVE-2026-70348 1 CVE

Windows Management Services Denial of Service Vulnerability

Published Aug 11, 2026 · Updated Aug 12, 2026 · Revision 2

Vendor: Microsoft

Summary

Impact: Denial of Service. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

Security updates
10.0.26200.9168 — https://support.microsoft.com/help/5121003
10.0.26200.9106 — https://support.microsoft.com/help/5120994
10.0.28000.2704 — https://support.microsoft.com/help/5121000

Vulnerabilities 1

Medium 5.5

CVE-2026-70348

Windows Management Services Denial of Service Vulnerability

Improper link resolution before file access ('link following') in Windows Management Services allows an authorized attacker to deny service locally.

Microsoft Windows 11 Version 24H2 Windows 11 Version 25H2 Windows 11 version 26H1 Windows

Aug 11, 2026

Revision history

2026-08-12 #2
Updated an acknowledgement. This is an informational change only.
2026-08-11 #1
Information published.

References

CVE-2026-70348 Windows Management Services Denial of Service Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70348
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss