CVE-2026-25170: CWE-416: Use After Free in Microsoft Windows 11 version 22H3
Use after free in Windows Hyper-V 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 Hyper-V component of Windows 11 version 22H3 (build 10.0.22631.0). Exploitation requires local access with limited privileges and no user interaction. Successful exploitation could lead to full confidentiality, integrity, and availability compromise on the affected system. Microsoft has released an official fix to remediate this vulnerability.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to elevate privileges, potentially gaining full control over the affected system. The CVSS v3.1 base score is 7.0 (High), reflecting high impact on confidentiality, integrity, and availability.
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-2026-25170 to remediate this vulnerability.
CVE-2026-25170: CWE-416: Use After Free in Microsoft Windows 11 version 22H3
Description
Use after free in Windows Hyper-V allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.0high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-416) involves a use-after-free condition in the Windows Hyper-V component of Windows 11 version 22H3 (build 10.0.22631.0). Exploitation requires local access with limited privileges and no user interaction. Successful exploitation could lead to full confidentiality, integrity, and availability compromise on the affected system. Microsoft has released an official fix to remediate this vulnerability.
Potential Impact
An authorized local attacker can exploit this use-after-free vulnerability to elevate privileges, potentially gaining full control over the affected system. The CVSS v3.1 base score is 7.0 (High), reflecting high impact on confidentiality, integrity, and availability.
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-2026-25170 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-01-29T18:36:49.695Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-25170","vendor":"Microsoft"}]
Threat ID: 69b0562cea502d3aa87d69ed
Added to database: 03/10/2026, 17:34:36 UTC
Last enriched: 06/19/2026, 20:27:51 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 150
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