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 (CWE-416) involves a use-after-free condition in the Windows Server Update Service component of Windows 11 version 26H1 (build 10.0.28000.0). Exploitation requires local access with some privileges and no user interaction. Successful exploitation could lead to full confidentiality, integrity, and availability impact by elevating privileges locally. Microsoft has published an official fix to remediate this vulnerability.
Potential Impact
An authorized local attacker could exploit this use-after-free vulnerability to elevate their privileges on the affected Windows 11 system. This could allow the attacker to gain higher-level access than intended, potentially compromising system confidentiality, integrity, and availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32224 to remediate this vulnerability. No additional mitigation steps are indicated by the vendor.
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
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-416) involves a use-after-free condition in the Windows Server Update Service component of Windows 11 version 26H1 (build 10.0.28000.0). Exploitation requires local access with some privileges and no user interaction. Successful exploitation could lead to full confidentiality, integrity, and availability impact by elevating privileges locally. Microsoft has published an official fix to remediate this vulnerability.
Potential Impact
An authorized local attacker could exploit this use-after-free vulnerability to elevate their privileges on the affected Windows 11 system. This could allow the attacker to gain higher-level access than intended, potentially compromising system confidentiality, integrity, and availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32224 to remediate this vulnerability. No additional mitigation steps are indicated by the vendor.
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: 4/14/2026, 5:32:40 PM
Last enriched: 5/26/2026, 8:00:25 PM
Last updated: 5/30/2026, 4:26:29 PM
Views: 69
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