CVE-2026-69637: CWE-125: Out-of-bounds Read in Microsoft Windows 10 Version 1607
Description
CVE-2026-69637 is an out-of-bounds read vulnerability in the Windows DHCP Server component affecting multiple versions of Microsoft Windows 10, including Version 1607. The 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, tracked as CVE-2026-69637 and categorized under CWE-125 (Out-of-bounds Read), affects the Windows DHCP Server in several Windows 10 versions and related Windows versions. It allows an attacker with authorized access to the DHCP server to perform an out-of-bounds read, which can lead to denial of service conditions on adjacent networks. The vulnerability does not impact confidentiality or integrity but affects availability. Microsoft has published an official fix for this issue.
Potential Impact
The vulnerability enables an authorized attacker to cause denial of service (availability impact) on adjacent networks by exploiting an out-of-bounds read in the Windows DHCP Server. There is no impact on confidentiality or integrity. No known exploits are reported in the wild at this time.
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-2026-69637.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-03T21:24:59.408Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69637","vendor":"Microsoft"}]
Threat ID: 6aa0451aacd9273b49fa9778
Added to database: 09/08/2026, 17:25:46 UTC
Last enriched: 10/16/2026, 21:26:10 UTC
Last updated: 10/22/2026, 13:15:23 UTC
Views: 46
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