CVE-2026-83985: 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-2026-83985) 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. The vulnerability is classified under CWE-122 (Heap-based Buffer Overflow). Microsoft has published an official fix for this vulnerability, and no known exploits are reported in the wild as of the publication date.
Potential Impact
Successful exploitation of this vulnerability could allow an authorized local attacker to gain elevated privileges, potentially leading to full system compromise. The impact includes confidentiality, integrity, and availability being rated as high according to the CVSS vector.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. It is recommended to apply the security update provided by Microsoft as detailed in their advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83985. No additional mitigation steps are indicated by the vendor.
CVE-2026-83985: 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-2026-83985) 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. The vulnerability is classified under CWE-122 (Heap-based Buffer Overflow). Microsoft has published an official fix for this vulnerability, and no known exploits are reported in the wild as of the publication date.
Potential Impact
Successful exploitation of this vulnerability could allow an authorized local attacker to gain elevated privileges, potentially leading to full system compromise. The impact includes confidentiality, integrity, and availability being rated as high according to the CVSS vector.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. It is recommended to apply the security update provided by Microsoft as detailed in their advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83985. No additional mitigation steps are indicated by the vendor.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-09-01T01:02:23.996Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83985","vendor":"Microsoft"}]
Threat ID: 6aa04579acd9273b49fbdf19
Added to database: 09/08/2026, 17:27:21 UTC
Last enriched: 09/08/2026, 17:38:48 UTC
Last updated: 09/09/2026, 00:24:13 UTC
Views: 5
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