CVE-2026-83987: 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-2026-83987) involves a heap-based buffer overflow in the Windows Biometric Service component of Microsoft Windows 10 Version 1607 (build 10.0.14393.0). The flaw enables an attacker with local authorized access to elevate their privileges, potentially gaining higher system rights. The CVSS v3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability with low attack complexity and no user interaction required. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker can exploit this heap-based buffer overflow to elevate privileges, potentially gaining administrative rights and full control over the affected system. This could lead to complete compromise of system confidentiality, integrity, and availability.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83987 to remediate this vulnerability.
CVE-2026-83987: 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-2026-83987) involves a heap-based buffer overflow in the Windows Biometric Service component of Microsoft Windows 10 Version 1607 (build 10.0.14393.0). The flaw enables an attacker with local authorized access to elevate their privileges, potentially gaining higher system rights. The CVSS v3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability with low attack complexity and no user interaction required. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized local attacker can exploit this heap-based buffer overflow to elevate privileges, potentially gaining administrative rights and full control over the affected system. This could lead to complete compromise of system confidentiality, integrity, and availability.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83987 to remediate this vulnerability.
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-2026-83987","vendor":"Microsoft"}]
Threat ID: 6aa0457bacd9273b49fbdf5d
Added to database: 09/08/2026, 17:27:23 UTC
Last enriched: 09/08/2026, 17:38:38 UTC
Last updated: 09/09/2026, 00:24:15 UTC
Views: 5
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