CVE-2026-32224: CWE-416: Use After Free in Microsoft Windows 11 version 26H1
Use after free in Windows Server Update Service allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability, identified as CWE-416 (Use After Free), exists in the Windows Server Update Service on Windows 11 version 26H1 (build 10.0.28000.0). An authorized attacker with local access can exploit this flaw to elevate their privileges, potentially gaining higher-level permissions than intended. The CVSS v3.1 base score is 7.0, indicating high severity, with attack vector local, high attack complexity, low privileges required, no user interaction, and impacts to confidentiality, integrity, and availability. Microsoft has released an official fix for this vulnerability.
Potential Impact
Successful exploitation of this vulnerability allows a local authorized attacker to elevate their privileges on the affected Windows 11 system, potentially leading to full system compromise or unauthorized access to sensitive resources. The vulnerability impacts confidentiality, integrity, and availability of the system.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. It is recommended to apply the security update provided by Microsoft as soon as possible to remediate this issue. No additional mitigation steps are required beyond applying the official patch.
CVE-2026-32224: CWE-416: Use After Free in Microsoft Windows 11 version 26H1
Description
Use after free in Windows Server Update Service allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.0high
Affected software
Microsoft
Windows 11 version 26H1
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CWE-416 (Use After Free), exists in the Windows Server Update Service on Windows 11 version 26H1 (build 10.0.28000.0). An authorized attacker with local access can exploit this flaw to elevate their privileges, potentially gaining higher-level permissions than intended. The CVSS v3.1 base score is 7.0, indicating high severity, with attack vector local, high attack complexity, low privileges required, no user interaction, and impacts to confidentiality, integrity, and availability. Microsoft has released an official fix for this vulnerability.
Potential Impact
Successful exploitation of this vulnerability allows a local authorized attacker to elevate their privileges on the affected Windows 11 system, potentially leading to full system compromise or unauthorized access to sensitive resources. The vulnerability impacts confidentiality, integrity, and availability of the system.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. It is recommended to apply the security update provided by Microsoft as soon as possible to remediate this issue. No additional mitigation steps are required beyond applying the official patch.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-03-11T01:49:58.662Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32224","vendor":"Microsoft"}]
Threat ID: 69de7a3882d89c981fd6cef0
Added to database: 04/14/2026, 17:32:40 UTC
Last enriched: 08/15/2026, 14:09:24 UTC
Last updated: 09/13/2026, 10:01:30 UTC
Views: 176
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