CVE-2026-68873: CWE-532: Insertion of Sensitive Information into Log File in Microsoft Windows 11 version 23H2
Description
CVE-2026-68873 is a vulnerability in Microsoft Windows 11 version 23H2 where the Program Compatibility Assistant Service inserts sensitive information into log files. This flaw allows an authorized local attacker to disclose sensitive information. The vulnerability has a medium severity with a CVSS score of 5.5. Microsoft has released an official fix for this issue.
CVSS v3.1
Score 5.5medium
Affected software
Microsoft
Windows 11 version 23H2
Microsoft
Windows 11 Version 23H2
Microsoft
Windows 11 Version 24H2
Microsoft
Windows 11 Version 25H2
Microsoft
Windows 11 version 26H1
Microsoft
Windows Server 2025
Microsoft
Windows Server 2025 (Server Core installation)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability identified as CVE-2026-68873 involves the insertion of sensitive information into log files by the Windows Program Compatibility Assistant Service in Windows 11 version 23H2. This issue can be exploited by an authorized local attacker to disclose sensitive information. The CVSS 3.1 base score is 5.5, reflecting a medium severity impact primarily on confidentiality. The vulnerability affects multiple builds of Windows 11 version 23H2 as specified by the affected version ranges. Microsoft has published an official fix to remediate this vulnerability.
Potential Impact
An authorized local attacker can disclose sensitive information due to the improper logging behavior of the Program Compatibility Assistant Service. The impact is limited to confidentiality loss without affecting integrity or availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the provided security updates for Windows 11 version 23H2 as detailed in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-68873. No additional mitigation actions are required beyond applying the official patch.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-31T20:06:14.673Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-68873","vendor":"Microsoft"}]
Threat ID: 6aa044d7acd9273b49fa7ca7
Added to database: 09/08/2026, 17:24:39 UTC
Last enriched: 10/16/2026, 20:56:03 UTC
Last updated: 10/23/2026, 15:10:14 UTC
Views: 40
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