CVE-2026-34336: CWE-126: Buffer Over-read in Microsoft Windows 10 Version 1607
Buffer over-read in Windows DWM Core Library allows an authorized attacker to disclose information locally.
AI Analysis
Technical Summary
This vulnerability (CWE-126) involves a buffer over-read in the Desktop Window Manager (DWM) Core Library component of Microsoft Windows 10 Version 1607. An authorized attacker with local access can exploit this flaw to read sensitive information from memory, potentially leading to information disclosure. The CVSS v3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability. Microsoft has published an official patch to remediate this vulnerability.
Potential Impact
Successful exploitation can result in local information disclosure, compromising confidentiality. The CVSS vector indicates high impact on confidentiality, integrity, and availability, meaning the vulnerability could also affect system stability or data integrity. However, exploitation requires local access and authorized privileges.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34336 to remediate this vulnerability. No additional mitigation steps are indicated by the vendor.
CVE-2026-34336: CWE-126: Buffer Over-read in Microsoft Windows 10 Version 1607
Description
Buffer over-read in Windows DWM Core Library allows an authorized attacker to disclose information locally.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-126) involves a buffer over-read in the Desktop Window Manager (DWM) Core Library component of Microsoft Windows 10 Version 1607. An authorized attacker with local access can exploit this flaw to read sensitive information from memory, potentially leading to information disclosure. The CVSS v3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability. Microsoft has published an official patch to remediate this vulnerability.
Potential Impact
Successful exploitation can result in local information disclosure, compromising confidentiality. The CVSS vector indicates high impact on confidentiality, integrity, and availability, meaning the vulnerability could also affect system stability or data integrity. However, exploitation requires local access and authorized privileges.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34336 to remediate this vulnerability. No additional mitigation steps are indicated by the vendor.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-03-26T21:02:16.446Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34336","vendor":"Microsoft"}]
Threat ID: 6a03653ccbff5d861008c3e8
Added to database: 5/12/2026, 5:37:00 PM
Last enriched: 5/12/2026, 7:23:27 PM
Last updated: 5/13/2026, 4:59:17 AM
Views: 3
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