CVE-2024-38052 in Windows
Summary
by MITRE • 07/09/2024
Kernel Streaming WOW Thunk Service Driver Elevation of Privilege Vulnerability
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Analysis
by VulDB Data Team • 05/17/2026
This vulnerability resides within the kernel streaming wow thunk service driver which operates as a critical component in windows operating systems facilitating communication between 32-bit and 64-bit applications through the windows on windows subsystem. The flaw manifests as an elevation of privilege vulnerability that allows malicious actors to escalate their privileges from standard user level to system level access. The technical implementation involves improper validation of input parameters within the driver's handling of kernel streaming operations, specifically when processing requests from user-mode applications through the wow thunk interface. This creates a pathway for privilege escalation attacks that directly violate the principle of least privilege and system security boundaries established by microsoft's security model. The vulnerability affects multiple windows versions including windows 10, windows 11, and various server operating systems where the kernel streaming wow thunk service remains enabled. From an operational perspective this vulnerability represents a severe threat to enterprise security environments as it enables attackers to bypass standard user access controls and gain full system compromise without requiring physical access or prior exploitation. The attack surface is particularly concerning given that the affected driver operates at kernel level with elevated privileges and the vulnerability can be exploited through legitimate system interfaces. This weakness directly maps to cwe-264 permissions, privileges, and access controls and aligns with attack technique t1068 privilege escalation through kernel exploits in the mitre att&ck framework. The exploitation requires minimal prerequisites and can be automated, making it particularly dangerous for organizations with insufficient patch management processes. Organizations should prioritize immediate deployment of microsoft security updates and consider implementing additional security controls such as driver signature enforcement and monitoring for suspicious kernel-level activities. The vulnerability highlights the importance of proper input validation in kernel-mode drivers and demonstrates the critical need for comprehensive security testing of system services that operate with elevated privileges. Regular security assessments and adherence to secure coding practices including input sanitization and privilege separation are essential for preventing similar vulnerabilities in the future. The impact extends beyond individual system compromise to potential network-wide infiltration as attackers can leverage system-level access to establish persistent presence and move laterally within networks. Microsoft's security advisory emphasizes the critical nature of this vulnerability and recommends immediate remediation through official patches while security teams should monitor for exploitation attempts and implement appropriate detection measures through endpoint protection solutions and system monitoring tools.