CVE-2026-69679: CWE-125: Out-of-bounds Read in Microsoft Windows 10 Version 1607
Description
CVE-2026-69679 is an out-of-bounds read vulnerability in the Windows DHCP Server component affecting multiple versions of Microsoft Windows 10, including version 1607. This flaw allows an authorized attacker to cause a denial of service on an adjacent network. The vulnerability has a medium severity rating with a CVSS score of 5.7. An official fix is available from Microsoft.
CVSS v3.1
Score 5.7medium
Affected software
Microsoft
Windows 10 Version 1607
Microsoft
Windows 10 Version 1809
Microsoft
Windows Server 2012
Microsoft
Windows Server 2012 (Server Core installation)
Microsoft
Windows Server 2012 R2
Microsoft
Windows Server 2012 R2 (Server Core installation)
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-2026-69679) involves an out-of-bounds read in the Windows DHCP Server. It affects several versions of Windows 10 and related Windows versions as specified by the affected version ranges. The flaw allows an attacker with authorized access to the DHCP Server to cause a denial of service condition on an adjacent network. The CVSS 3.1 vector indicates the attack requires adjacent network access, low complexity, and low privileges with no user interaction, impacting availability but not confidentiality or integrity. Microsoft has published an official fix for this vulnerability.
Potential Impact
An authorized attacker can exploit this vulnerability to cause a denial of service on an adjacent network by triggering an out-of-bounds read in the Windows DHCP Server. This impacts the availability of the DHCP service but does not affect confidentiality or integrity.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security updates provided by Microsoft for the affected Windows versions as detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69679.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-03T21:28:58.727Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69679","vendor":"Microsoft"}]
Threat ID: 6aa0451dacd9273b49fa97ce
Added to database: 09/08/2026, 17:25:49 UTC
Last enriched: 10/16/2026, 21:27:33 UTC
Last updated: 10/23/2026, 15:10:14 UTC
Views: 38
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