CVE-2026-32155: CWE-416: Use After Free in Microsoft Windows 10 Version 21H2
Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-32155) involves a use-after-free condition in the Desktop Window Manager of Windows 10 Version 21H2 (build 10.0.19044.0). Exploitation requires local access with some privileges and does not require user interaction. Successful exploitation could result in full confidentiality, integrity, and availability impact due to privilege escalation. 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, potentially gaining higher-level access to the system. The impact includes complete compromise of confidentiality, integrity, and availability on the affected system.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft for Windows 10 Version 21H2 (build 10.0.19044.0) as soon as possible to remediate this vulnerability. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32155 for update details.
CVE-2026-32155: CWE-416: Use After Free in Microsoft Windows 10 Version 21H2
Description
Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-32155) involves a use-after-free condition in the Desktop Window Manager of Windows 10 Version 21H2 (build 10.0.19044.0). Exploitation requires local access with some privileges and does not require user interaction. Successful exploitation could result in full confidentiality, integrity, and availability impact due to privilege escalation. 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, potentially gaining higher-level access to the system. The impact includes complete compromise of confidentiality, integrity, and availability on the affected system.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft for Windows 10 Version 21H2 (build 10.0.19044.0) as soon as possible to remediate this vulnerability. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32155 for update details.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-03-10T23:09:43.264Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32155","vendor":"Microsoft"}]
Threat ID: 69de7a3082d89c981fd6bc80
Added to database: 04/14/2026, 17:32:32 UTC
Last enriched: 06/19/2026, 17:07:22 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 100
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.