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 (CVE-2026-25170) involves a use-after-free condition in the Windows Hyper-V component of Windows 11 version 22H3 (build 10.0.22631.0). An authorized local attacker with limited privileges can exploit this flaw to elevate their privileges on the affected system. The CVSS 3.1 base score is 7.0, reflecting high impact on confidentiality, integrity, and availability, with attack vector local, attack complexity high, and no user interaction required. The vulnerability is confirmed published and a patch is available.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, potentially gaining higher system rights. This can lead to full system compromise affecting confidentiality, integrity, and availability of the system.
Mitigation Recommendations
A patch is available for this vulnerability and should be applied promptly to affected Windows 11 version 22H3 systems. Since this is a local privilege escalation vulnerability, applying the official fix is the primary mitigation. No additional vendor advisory content is provided, so check Microsoft’s official security updates for the patch details and deployment guidance.
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-25170) involves a use-after-free condition in the Windows Hyper-V component of Windows 11 version 22H3 (build 10.0.22631.0). An authorized local attacker with limited privileges can exploit this flaw to elevate their privileges on the affected system. The CVSS 3.1 base score is 7.0, reflecting high impact on confidentiality, integrity, and availability, with attack vector local, attack complexity high, and no user interaction required. The vulnerability is confirmed published and a patch is available.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate privileges, potentially gaining higher system rights. This can lead to full system compromise affecting confidentiality, integrity, and availability of the system.
Mitigation Recommendations
A patch is available for this vulnerability and should be applied promptly to affected Windows 11 version 22H3 systems. Since this is a local privilege escalation vulnerability, applying the official fix is the primary mitigation. No additional vendor advisory content is provided, so check Microsoft’s official security updates for the patch details and deployment guidance.
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: 3/10/2026, 5:34:36 PM
Last enriched: 4/26/2026, 2:22:56 AM
Last updated: 4/28/2026, 7:26:54 AM
Views: 70
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.