CVE-2026-62769: CWE-197: Numeric Truncation Error in Microsoft Windows 10 Version 1607
Numeric truncation error in Windows DNS allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability involves a numeric truncation error (CWE-197) in the Windows DNS implementation on Windows 10 Version 1607 (build 10.0.14393.0). Exploitation requires local access with authorized privileges and can result in privilege escalation. The vulnerability has been assigned CVE-2026-62769 and is rated medium severity with a CVSS 3.1 base score of 6.7. Microsoft has released an official patch to remediate the issue, as documented in their security update guide.
Potential Impact
An authorized local attacker could exploit this numeric truncation error to elevate their privileges, potentially gaining higher-level access on the affected Windows 10 Version 1607 system. This could lead to full system compromise depending on the privileges gained.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users and administrators should apply the security update provided by Microsoft as detailed in the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62769 to remediate this issue.
CVE-2026-62769: CWE-197: Numeric Truncation Error in Microsoft Windows 10 Version 1607
Description
Numeric truncation error in Windows DNS allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 6.7medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a numeric truncation error (CWE-197) in the Windows DNS implementation on Windows 10 Version 1607 (build 10.0.14393.0). Exploitation requires local access with authorized privileges and can result in privilege escalation. The vulnerability has been assigned CVE-2026-62769 and is rated medium severity with a CVSS 3.1 base score of 6.7. Microsoft has released an official patch to remediate the issue, as documented in their security update guide.
Potential Impact
An authorized local attacker could exploit this numeric truncation error to elevate their privileges, potentially gaining higher-level access on the affected Windows 10 Version 1607 system. This could lead to full system compromise depending on the privileges gained.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users and administrators should apply the security update provided by Microsoft as detailed in the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62769 to remediate this issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-14T21:04:04.256Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62769","vendor":"Microsoft"}]
Threat ID: 6a7b5815bf8831d539155ec7
Added to database: 08/11/2026, 17:12:53 UTC
Last enriched: 08/11/2026, 21:56:53 UTC
Last updated: 08/12/2026, 00:12:10 UTC
Views: 4
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