CVE-2026-83969: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607
Heap-based buffer overflow in Windows Biometric Service allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-83969) involves a heap-based buffer overflow in the Windows Biometric Service component of Microsoft Windows 10 Version 1607 (build 10.0.14393.0). An attacker with local authorized access can exploit this flaw to elevate their privileges on the affected system. The CVSS v3.1 base score is 7.8, indicating high severity with high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to address this vulnerability.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, potentially gaining higher system rights than intended. This could lead to full system compromise depending on the privileges gained. The vulnerability affects confidentiality, integrity, and availability at a high level.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users and administrators should apply the provided security update from the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83969 to remediate this issue.
CVE-2026-83969: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607
Description
Heap-based buffer overflow in Windows Biometric Service 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 (CVE-2026-83969) involves a heap-based buffer overflow in the Windows Biometric Service component of Microsoft Windows 10 Version 1607 (build 10.0.14393.0). An attacker with local authorized access can exploit this flaw to elevate their privileges on the affected system. The CVSS v3.1 base score is 7.8, indicating high severity with high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to address this vulnerability.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, potentially gaining higher system rights than intended. This could lead to full system compromise depending on the privileges gained. The vulnerability affects confidentiality, integrity, and availability at a high level.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users and administrators should apply the provided security update from the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83969 to remediate this issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-09-01T01:02:23.995Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83969","vendor":"Microsoft"}]
Threat ID: 6aa04577acd9273b49fbdeda
Added to database: 09/08/2026, 17:27:19 UTC
Last enriched: 09/08/2026, 17:54:38 UTC
Last updated: 09/09/2026, 00:23:46 UTC
Views: 5
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