CVE-2026-88112: CWE-822: Untrusted Pointer Dereference in Microsoft Windows 10 Version 1607
Description
CVE-2026-88112 is a high-severity vulnerability in Microsoft Windows 10 Version 1607 and related builds involving an untrusted pointer dereference in the DNS Server component. This flaw allows an unauthorized attacker to execute code remotely over a network. The vulnerability affects multiple Windows 10 versions prior to specific patch levels. An official fix is available from Microsoft.
CVSS v3.1
Score 8.8high
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 11 Version 26H2
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, identified as CWE-822 (Untrusted Pointer Dereference), exists in the DNS Server component of Microsoft Windows 10 Version 1607 and other specified builds. It allows an attacker without privileges to execute arbitrary code remotely by exploiting how the DNS Server handles pointers. The CVSS v3.1 base score is 8.8, indicating high severity with network attack vector, low attack complexity, no privileges required, user interaction required, and impacts on confidentiality, integrity, and availability. Microsoft has published an official fix to address this issue.
Potential Impact
Successful exploitation could allow an attacker to execute arbitrary code remotely on affected Windows 10 systems, potentially leading to full system compromise, including complete confidentiality, integrity, and availability impacts. 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 10 versions as detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88112. No additional mitigations are specified beyond applying the official patches.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-09-09T21:51:51.954Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88112","vendor":"Microsoft"}]
Threat ID: 6ace85592cdf04f6569ff506
Added to database: 10/13/2026, 19:24:09 UTC
Last enriched: 10/14/2026, 01:49:42 UTC
Last updated: 10/14/2026, 01:49:42 UTC
Views: 3
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