CVE-2026-26179: CWE-415: Double Free in Microsoft Windows 11 version 22H3
Double free in Windows Kernel allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability is a double free condition in the Windows Kernel of Windows 11 version 22H3 (build 10.0.22631.0). It enables an attacker with local authorized access to elevate their privileges by exploiting the kernel memory management flaw. The CVSS 3.1 base score is 7.8, indicating high severity with high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to remediate this vulnerability.
Potential Impact
An authorized local attacker can exploit this double free vulnerability to elevate privileges, potentially gaining higher system rights than intended. This can lead to full system compromise, affecting confidentiality, integrity, and availability of the system.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. Users and administrators should apply the security update provided by Microsoft as soon as possible to mitigate the risk. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-26179: CWE-415: Double Free in Microsoft Windows 11 version 22H3
Description
Double free in Windows Kernel allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.8high
Affected software
Microsoft
Windows 11 version 22H3
Microsoft
Windows 11 Version 23H2
Microsoft
Windows 11 Version 24H2
Microsoft
Windows 11 Version 25H2
Microsoft
Windows 11 version 26H1
Microsoft
Windows Server 2022, 23H2 Edition (Server Core installation)
Microsoft
Windows Server 2025
Microsoft
Windows Server 2025 (Server Core installation)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is a double free condition in the Windows Kernel of Windows 11 version 22H3 (build 10.0.22631.0). It enables an attacker with local authorized access to elevate their privileges by exploiting the kernel memory management flaw. The CVSS 3.1 base score is 7.8, indicating high severity with high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to remediate this vulnerability.
Potential Impact
An authorized local attacker can exploit this double free vulnerability to elevate privileges, potentially gaining higher system rights than intended. This can lead to full system compromise, affecting confidentiality, integrity, and availability of the system.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. Users and administrators should apply the security update provided by Microsoft as soon as possible to mitigate the risk. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-02-11T18:33:57.777Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26179","vendor":"Microsoft"}]
Threat ID: 69de7a1b82d89c981fd6a6df
Added to database: 04/14/2026, 17:32:11 UTC
Last enriched: 08/15/2026, 13:56:38 UTC
Last updated: 09/14/2026, 10:01:30 UTC
Views: 187
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