CVE-2026-69803: CWE-125: Out-of-bounds Read in Microsoft Windows 10 Version 1607
Description
CVE-2026-69803 is an out-of-bounds read vulnerability in the Windows DHCP Server component affecting multiple versions of Microsoft Windows including Windows 10 Version 1607. This flaw allows an unauthorized attacker to disclose information over a network. The vulnerability has a medium severity with a CVSS score of 5.9. An official fix is available from Microsoft.
CVSS v3.1
Score 5.9medium
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-2026-69803) involves an out-of-bounds read in the Windows DHCP Server, which could allow an unauthorized attacker to disclose sensitive information over a network. The affected products include various builds of Windows 10 Version 1607 and other Windows versions as specified. The CVSS v3.1 base score is 5.9, reflecting a medium severity with network attack vector, high attack complexity, no privileges required, and no user interaction needed. Microsoft has released an official fix for this vulnerability.
Potential Impact
An attacker exploiting this vulnerability could gain unauthorized access to information from the affected Windows DHCP Server component over the network. This could lead to information disclosure but does not impact integrity or availability. 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-2026-69803.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-03T22:47:19.709Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69803","vendor":"Microsoft"}]
Threat ID: 6aa0452dacd9273b49fa998a
Added to database: 09/08/2026, 17:26:05 UTC
Last enriched: 10/16/2026, 21:34:36 UTC
Last updated: 10/23/2026, 15:10:14 UTC
Views: 20
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