CVE-2026-62688: Windows MIDI Service Module Elevation of Privileges Vulnerability

Published Aug 11, 2026
·
Updated

Heap-based buffer overflow in Windows MIDI Service Module allows an authorized attacker to elevate privileges locally.

Other sources

Windows MIDI Service Module Elevation of Privileges Vulnerability

Microsoft

Affected Software

6 affected componentsFixes available
Microsoft Windows 11=24H2
10.0.26100.916810.0.26100.9106
Microsoft Windows 11=25H2
10.0.26200.916810.0.26100.9106
Microsoft Windows 11=25H2
10.0.26200.916810.0.26100.9106
Microsoft Windows 11=24H2
10.0.26100.916810.0.26000.9106
Microsoft Windows 11=26H1
10.0.28000.2704
Microsoft Windows 11=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 10.0.26100.9168Fixed in 10.0.26100.9106Patch KB5120994
  2. Upgrade

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

    Fixed in 10.0.26200.9168Fixed in 10.0.26100.9106Patch KB5120994
  3. Upgrade

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

    Fixed in 10.0.28000.2704Patch KB5121000
  4. 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

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·05:04 PM
Data Sourced
via MITRE·05:04 PM
DescriptionSeverity
Data Sourced
via NVD·05:18 PM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2026-62688?

The severity of CVE-2026-62688 is rated as high with a score of 7.8.

2

How do I fix CVE-2026-62688?

To remediate CVE-2026-62688, apply the latest security updates provided by Microsoft for Windows 11.

3

What impact does CVE-2026-62688 have on my system?

CVE-2026-62688 can allow an authorized attacker to elevate privileges locally, potentially gaining increased access to system resources.

4

Is CVE-2026-62688 applicable to all versions of Windows?

CVE-2026-62688 specifically affects Microsoft Windows 11.

5

What is the nature of the vulnerability in CVE-2026-62688?

CVE-2026-62688 is a heap-based buffer overflow vulnerability in the Windows MIDI Service Module.

Contact

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