CVE-2026-62698: CWE-197: Numeric Truncation Error in Microsoft Windows 10 Version 1607
Numeric truncation error in Microsoft Digest Authentication allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability involves a numeric truncation error (CWE-197) in the Microsoft Digest Authentication component of Windows 10 Version 1607 (build 10.0.14393.0). An authorized attacker with local access can exploit this flaw to elevate their privileges on the affected system. The vulnerability has been assigned CVE-2026-62698 and is rated high severity with a CVSS 3.1 base score of 7.8, reflecting high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to remediate this issue.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, potentially gaining higher-level access than intended. This can compromise system confidentiality, integrity, and availability on affected Windows 10 Version 1607 systems.
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-2026-62698 to remediate this vulnerability.
CVE-2026-62698: CWE-197: Numeric Truncation Error in Microsoft Windows 10 Version 1607
Description
Numeric truncation error in Microsoft Digest Authentication allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a numeric truncation error (CWE-197) in the Microsoft Digest Authentication component of Windows 10 Version 1607 (build 10.0.14393.0). An authorized attacker with local access can exploit this flaw to elevate their privileges on the affected system. The vulnerability has been assigned CVE-2026-62698 and is rated high severity with a CVSS 3.1 base score of 7.8, reflecting high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to remediate this issue.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, potentially gaining higher-level access than intended. This can compromise system confidentiality, integrity, and availability on affected Windows 10 Version 1607 systems.
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-2026-62698 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-14T20:56:21.890Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62698","vendor":"Microsoft"}]
Threat ID: 6a7b580abf8831d539155a05
Added to database: 08/11/2026, 17:12:42 UTC
Last enriched: 08/11/2026, 22:28:06 UTC
Last updated: 08/12/2026, 00:12:10 UTC
Views: 4
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