CVE-2026-73007: 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
Microsoft
Windows 10 Version 1607
Microsoft
Windows 10 Version 1809
Microsoft
Windows 10 Version 21H2
Microsoft
Windows 10 Version 22H2
Microsoft
Windows 11 version 23H2
Microsoft
Windows 11 Version 23H2
Microsoft
Windows 11 Version 24H2
Microsoft
Windows 11 Version 25H2
Microsoft
Windows 11 version 26H1
Microsoft
Windows Server 2016
Microsoft
Windows Server 2016 (Server Core installation)
Microsoft
Windows Server 2019
Microsoft
Windows Server 2019 (Server Core installation)
Microsoft
Windows Server 2022
Microsoft
Windows Server 2025
Microsoft
Windows Server 2025 (Server Core installation)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-73007) involves a heap-based buffer overflow in the Windows Biometric Service component of Microsoft Windows 10 Version 1607 and several subsequent builds. An authorized attacker with local access can exploit this flaw to elevate their privileges on the affected system. The vulnerability is classified under CWE-122 (Heap-based Buffer Overflow). It has a CVSS v3.1 base score of 7.8, indicating high severity, with impacts on confidentiality, integrity, and availability. Microsoft has released an official patch to remediate this issue.
Potential Impact
Successful exploitation of this vulnerability allows an authorized local attacker to elevate their privileges, potentially gaining higher-level access to the affected system. This could compromise system confidentiality, integrity, and availability.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security updates provided by Microsoft for Windows 10 Version 1607 and the affected builds to remediate this vulnerability. Refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-73007 for detailed update instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-10T18:43:43.199Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-73007","vendor":"Microsoft"}]
Threat ID: 6aa04550acd9273b49fa9e1a
Added to database: 09/08/2026, 17:26:40 UTC
Last enriched: 10/14/2026, 21:53:36 UTC
Last updated: 10/22/2026, 01:15:25 UTC
Views: 22
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