CVE-2026-70348: Windows Management Services Denial of Service Vulnerability

Published Aug 11, 2026
·
Updated

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

Other sources

Windows Management Services Denial of Service Vulnerability

Microsoft

Affected Software

7 affected componentsFixes available
Microsoft Windows Management Services
Microsoft Windows 11=25H2
10.0.26200.916810.0.26100.9106
Microsoft Windows 11=24H2
10.0.26100.916810.0.26100.9106
Microsoft Windows 11=24H2
10.0.26100.916810.0.26000.9106
Microsoft Windows 11=26H1
10.0.28000.2704
Microsoft Windows 11=25H2
10.0.26200.916810.0.26100.9106
Microsoft Windows 11=26H1
10.0.28000.2704

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.26200.9168Fixed in 10.0.26100.9106Patch KB5120994
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.26100.9168Fixed in 10.0.26100.9106Patch KB5120994
  3. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.26100.9168Fixed in 10.0.26000.9106Patch KB5120994
  4. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10.0.28000.2704Patch KB5121000

Event History

Aug 11, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
CVE Published
via MITRE·05:05 PM
Data Sourced
via MITRE·05:05 PM
DescriptionSeverity
Data Sourced
via NVD·05:19 PM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2026-70348?

The severity of CVE-2026-70348 is classified as medium with a score of 5.5.

2

How does CVE-2026-70348 affect Windows Management Services?

CVE-2026-70348 allows an authorized attacker to cause a denial of service in Windows Management Services through improper link resolution.

3

What systems are impacted by CVE-2026-70348?

CVE-2026-70348 affects Microsoft Windows 11 and Microsoft Windows Management Services.

4

Who can exploit CVE-2026-70348?

CVE-2026-70348 can be exploited by an authorized attacker with local access to the affected system.

5

What is the potential impact of CVE-2026-70348?

The potential impact of CVE-2026-70348 is a denial of service, which can disrupt services on the affected system.

Contact

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