What is CVE-2026-70348?

CVE-2026-70348 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Windows Management Services Denial of Service Vulnerability

Which CVE IDs does CVE-2026-70348 cover?

CVE-2026-70348 covers the following CVE IDs: CVE-2026-70348. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-70348?

CVE-2026-70348 has a CVSS v3 base score of 5.5, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-70348?

CVE-2026-70348 affects 6 products, including: Windows 11 Version 24H2 for ARM64-based Systems; Windows 11 Version 24H2 for x64-based Systems; Windows 11 Version 25H2 for ARM64-based Systems; Windows 11 Version 25H2 for x64-based Systems; Windows 11 Version 26H1 for ARM64-based Systems; and others — see the full list on the advisory page.

CVE-2026-70348HighCVSS 5.5

Windows Management Services Denial of Service Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

August 14, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-70348 →

📋 Description

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

🎯 Affected products6

Windows 11 Version 24H2 for ARM64-based Systems
Windows 11 Version 24H2 for x64-based Systems
Windows 11 Version 25H2 for ARM64-based Systems
Windows 11 Version 25H2 for x64-based Systems
Windows 11 Version 26H1 for ARM64-based Systems
Windows 11 version 26H1 for x64-based Systems

✅ Remediation

KB5121003 (Security Update) — fixed build 10.0.26200.9168 KB5120994 (Security Hotpatch Update) — fixed build 10.0.26200.9106 KB5121003 (Security Update) — fixed build 10.0.26100.9168 KB5120994 (Security Hotpatch Update) — fixed build 10.0.26100.9106 KB5121000 (Security Update) — fixed build 10.0.28000.2704

🔗 CVE IDs covered (1)

📋 Description

🎯 Affected products6

✅ Remediation

🔗 References (7)