CVE-2026-50396: CWE-416: Use After Free in Microsoft Windows 11 Version 24H2
CVE-2026-50396 is a use-after-free vulnerability in Windows Kernel-Mode Drivers affecting Windows 11 Version 24H2 (build 10.0.26100.0). This flaw allows an authorized local attacker to elevate privileges. The vulnerability has a high severity rating with a CVSS score of 7. An official fix is available from Microsoft.
AI Analysis
Technical Summary
This vulnerability, identified as CVE-2026-50396 and classified under CWE-416 (Use After Free), exists in Windows Kernel-Mode Drivers on Windows 11 Version 24H2 (build 10.0.26100.0). It allows an attacker with local authorized access to exploit a use-after-free condition to elevate their privileges. The CVSS 3.1 vector indicates the attack requires local access with high attack complexity and low privileges, no user interaction, and impacts confidentiality, integrity, and availability. Microsoft has published an official fix to address this issue.
Potential Impact
An authorized local attacker can exploit this vulnerability to elevate privileges on the affected system, potentially gaining higher-level access than intended. This can compromise 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-2026-50396 to remediate this vulnerability.
CVE-2026-50396: CWE-416: Use After Free in Microsoft Windows 11 Version 24H2
Description
CVE-2026-50396 is a use-after-free vulnerability in Windows Kernel-Mode Drivers affecting Windows 11 Version 24H2 (build 10.0.26100.0). This flaw allows an authorized local attacker to elevate privileges. The vulnerability has a high severity rating with a CVSS score of 7. An official fix is available from Microsoft.
CVSS v3.1
Score 7.0high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CVE-2026-50396 and classified under CWE-416 (Use After Free), exists in Windows Kernel-Mode Drivers on Windows 11 Version 24H2 (build 10.0.26100.0). It allows an attacker with local authorized access to exploit a use-after-free condition to elevate their privileges. The CVSS 3.1 vector indicates the attack requires local access with high attack complexity and low privileges, no user interaction, and impacts confidentiality, integrity, and availability. Microsoft has published an official fix to address this issue.
Potential Impact
An authorized local attacker can exploit this vulnerability to elevate privileges on the affected system, potentially gaining higher-level access than intended. This can compromise 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-2026-50396 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T18:55:14.746Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50396","vendor":"Microsoft"}]
Threat ID: 6a56769868715ace43f08e68
Added to database: 07/14/2026, 17:49:12 UTC
Last enriched: 07/15/2026, 00:03:40 UTC
Last updated: 07/15/2026, 00:03:40 UTC
Views: 2
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.