CVE-2026-69339: CWE-497: Exposure of Sensitive System Information to an Unauthorized Control Sphere in Microsoft Windows 11 Version 24H2
Description
CVE-2026-69339 is a medium severity vulnerability in Microsoft Windows 11 Version 24H2 involving the Windows MIDI Service Module. It allows an authorized local attacker to disclose sensitive system information to an unauthorized control sphere. The vulnerability does not impact system integrity or availability but can lead to information disclosure. Official patches are available to address this issue.
CVSS v3.1
Score 5.5medium
Affected software
Microsoft
Windows 11 Version 24H2
Microsoft
Windows 11 Version 25H2
Microsoft
Windows 11 version 26H1
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, tracked as CVE-2026-69339 and categorized under CWE-497 (Exposure of Sensitive System Information to an Unauthorized Control Sphere), affects the Windows MIDI Service Module in Windows 11 Version 24H2. An authorized attacker with local access can exploit this flaw to disclose sensitive system information. The CVSS 3.1 base score is 5.5 (medium severity), with attack vector local, low attack complexity, and requiring low privileges without user interaction. The vulnerability impacts confidentiality but not integrity or availability. Microsoft has released an official fix for affected versions.
Potential Impact
An authorized local attacker can disclose sensitive system information, potentially aiding further attacks or reconnaissance. There is no impact on system integrity or availability. The vulnerability requires local access and low privileges.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the provided security updates for Windows 11 Version 24H2 to remediate this vulnerability. Refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69339 for update details and installation instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-03T20:49:42.868Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69339","vendor":"Microsoft"}]
Threat ID: 6aa044e7acd9273b49fa7e75
Added to database: 09/08/2026, 17:24:55 UTC
Last enriched: 10/16/2026, 21:04:32 UTC
Last updated: 10/23/2026, 15:10:14 UTC
Views: 27
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