CVE-2026-34332: CWE-416: Use After Free in Microsoft Windows Server 2025
Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to execute code over a network.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in Windows Kernel-Mode Drivers on Windows Server 2025 (version 10.0.26100.0). Exploitation requires an attacker with some level of authorization and network access, potentially allowing remote code execution with high impact on confidentiality, integrity, and availability. Microsoft has released an official fix addressing this issue.
Potential Impact
Successful exploitation can lead to remote code execution by an authorized attacker over the network, resulting in full compromise of the affected system's confidentiality, integrity, and availability.
Mitigation Recommendations
An official fix is available from Microsoft. Administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34332 to remediate this vulnerability.
CVE-2026-34332: CWE-416: Use After Free in Microsoft Windows Server 2025
Description
Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to execute code over a network.
CVSS v3.1
Score 8.0high
Affected software
Microsoft
Windows Server 2025
Microsoft
Windows Server 2025 (Server Core installation)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in Windows Kernel-Mode Drivers on Windows Server 2025 (version 10.0.26100.0). Exploitation requires an attacker with some level of authorization and network access, potentially allowing remote code execution with high impact on confidentiality, integrity, and availability. Microsoft has released an official fix addressing this issue.
Potential Impact
Successful exploitation can lead to remote code execution by an authorized attacker over the network, resulting in full compromise of the affected system's confidentiality, integrity, and availability.
Mitigation Recommendations
An official fix is available from Microsoft. Administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34332 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-03-26T21:02:16.445Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34332","vendor":"Microsoft"}]
Threat ID: 6a03653ccbff5d861008c3df
Added to database: 05/12/2026, 17:37:00 UTC
Last enriched: 08/11/2026, 16:36:55 UTC
Last updated: 09/12/2026, 22:01:33 UTC
Views: 106
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