CVE-2026-69294: CWE-209: Generation of Error Message Containing Sensitive Information in Microsoft Windows 10 Version 1809
Description
CVE-2026-69294 is a vulnerability in Microsoft Windows 10 Version 1809 and related builds where error messages generated by Microsoft COM contain sensitive information. This flaw allows an authorized local attacker to disclose sensitive information through error messages. The vulnerability has a medium severity with a CVSS score of 5.5. Official patches are available from Microsoft to address this issue.
CVSS v3.1
Score 5.5medium
Affected software
Microsoft
Windows 10 Version 1809
Microsoft
Windows 10 Version 21H2
Microsoft
Windows 10 Version 22H2
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 2019
Microsoft
Windows Server 2019 (Server Core installation)
Microsoft
Windows Server 2022
Microsoft
Windows Server 2025
Microsoft
Windows Server 2025 (Server Core installation)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves the generation of error messages containing sensitive information in Microsoft COM on Windows 10 Version 1809 and several subsequent builds. An authorized local attacker can exploit this to disclose sensitive information. The issue is tracked as CWE-209 (Generation of Error Message Containing Sensitive Information). Multiple affected Windows 10 builds are identified, all prior to specific patch versions. Microsoft has released official fixes for this vulnerability.
Potential Impact
An authorized local attacker can gain access to sensitive information disclosed in error messages generated by Microsoft COM. The vulnerability does not affect system integrity or availability but compromises confidentiality. 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 relevant security updates for their Windows 10 versions as detailed in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69294. No additional mitigation actions are indicated by the vendor.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-03T20:46:07.440Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69294","vendor":"Microsoft"}]
Threat ID: 6aa044e1acd9273b49fa7dd5
Added to database: 09/08/2026, 17:24:49 UTC
Last enriched: 10/16/2026, 21:00:54 UTC
Last updated: 10/24/2026, 03:05:10 UTC
Views: 50
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