CVE-2026-45600: CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') in Microsoft Windows 11 Version 24H2
Access of resource using incompatible type ('type confusion') in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability, identified as CWE-843 (Access of Resource Using Incompatible Type, or 'type confusion'), exists in Windows Kernel-Mode Drivers of Windows 11 Version 24H2 (build 10.0.26100.0). It enables an authorized local attacker to escalate privileges by exploiting improper handling of resource types in kernel mode. The CVSS v3.1 base score is 7.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to address this issue.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate their privileges, potentially gaining higher system rights and control. This impacts confidentiality, integrity, and availability of the affected system.
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-2026-45600 to remediate this vulnerability.
CVE-2026-45600: CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') in Microsoft Windows 11 Version 24H2
Description
Access of resource using incompatible type ('type confusion') in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 7.8high
Affected software
Microsoft
Windows 11 Version 24H2
Microsoft
Windows 11 Version 25H2
Microsoft
Windows 11 version 26H1
Microsoft
Windows Server 2025
Microsoft
Windows Server 2025 (Server Core installation)
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CWE-843 (Access of Resource Using Incompatible Type, or 'type confusion'), exists in Windows Kernel-Mode Drivers of Windows 11 Version 24H2 (build 10.0.26100.0). It enables an authorized local attacker to escalate privileges by exploiting improper handling of resource types in kernel mode. The CVSS v3.1 base score is 7.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to address this issue.
Potential Impact
Successful exploitation allows an authorized local attacker to elevate their privileges, potentially gaining higher system rights and control. This impacts confidentiality, integrity, and availability of the affected system.
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-2026-45600 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-12T19:55:45.730Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45600","vendor":"Microsoft"}]
Threat ID: 6a284ce48dd33fbd85664e5b
Added to database: 06/09/2026, 17:27:00 UTC
Last enriched: 08/14/2026, 13:40:33 UTC
Last updated: 09/14/2026, 22:01:34 UTC
Views: 90
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