CVE-2026-69583: CWE-122: Heap-based Buffer Overflow in Microsoft Windows 10 Version 1607
Description
CVE-2026-69583 is a heap-based buffer overflow vulnerability in the Windows Biometric Service on Microsoft Windows 10 Version 1607 and later builds. It allows an authorized local attacker to elevate privileges. The vulnerability has a high severity with a CVSS score of 7.8. An official patch is available from Microsoft to address this issue.
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-2026-69583) involves a heap-based buffer overflow in the Windows Biometric Service component of Microsoft Windows 10 Version 1607 and subsequent builds. The flaw allows an attacker with local authorized access to escalate privileges on the affected system. The issue is tracked under CWE-122. Microsoft has published an official fix for this vulnerability. No known exploits are reported in the wild at this time.
Potential Impact
Successful exploitation of this vulnerability could allow an authorized local attacker to elevate their privileges, potentially gaining higher-level access to the system. The confidentiality, integrity, and availability of the affected system could be fully compromised as indicated by the CVSS vector (C:H/I:H/A:H).
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security updates provided by Microsoft as detailed in the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69583 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-03T21:18:49.123Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69583","vendor":"Microsoft"}]
Threat ID: 6aa04512acd9273b49fa965e
Added to database: 09/08/2026, 17:25:38 UTC
Last enriched: 10/16/2026, 21:22:46 UTC
Last updated: 10/23/2026, 15:10:14 UTC
Views: 23
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.