CVE-2026-88179: CWE-125: Out-of-bounds Read in Microsoft Windows 10 Version 1607
Description
CVE-2026-88179 is an out-of-bounds read vulnerability in the Windows DWM Core Library affecting multiple builds of Microsoft Windows 10 Version 1607 and later. This flaw allows an authorized local attacker to elevate privileges. The vulnerability has a high severity rating with a CVSS score of 7.8. Microsoft has issued an official fix for this vulnerability.
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 26H2
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
CVE-2026-88179 is a vulnerability classified as CWE-125 (Out-of-bounds Read) in the Windows Desktop Window Manager (DWM) Core Library. It affects various builds of Windows 10 Version 1607 and later, allowing an authorized local attacker to perform an out-of-bounds read that can lead to privilege escalation. The vulnerability has been assigned a CVSS v3.1 base score of 7.8, indicating high severity, with impacts on confidentiality, integrity, and availability. Microsoft has released an official fix for this issue as documented in their security update guide.
Potential Impact
An authorized local attacker can exploit this vulnerability to elevate their privileges on the affected Windows 10 systems. This could lead to full system compromise, impacting confidentiality, integrity, and availability of the system.
Mitigation Recommendations
Microsoft has released an official fix for CVE-2026-88179. It is recommended to apply the security updates provided by Microsoft as soon as possible to remediate this vulnerability. Refer to the Microsoft security update guide for detailed patch information.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-09-09T21:59:30.884Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88179","vendor":"Microsoft"}]
Threat ID: 6ace85652cdf04f656a002f4
Added to database: 10/13/2026, 19:24:21 UTC
Last enriched: 10/14/2026, 01:18:45 UTC
Last updated: 10/14/2026, 01:18:45 UTC
Views: 2
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.