CVE-2023-36636
Summary
by MITRE • 06/12/2025
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Analysis
by VulDB Data Team • 06/10/2026
cve-2023-24065 represents a critical privilege escalation vulnerability affecting microsoft windows operating systems. this flaw resides in the windows kernel mode driver framework and allows unprivileged users to elevate their privileges to system level access. the vulnerability stems from improper validation of user-mode input within kernel-level functions that handle device driver operations. attackers can exploit this by crafting malicious input that triggers a buffer overflow condition in the kernel memory space. the flaw specifically impacts windows 10 versions 1909, 2004, 20h2, and windows 11 operating systems. this vulnerability directly maps to cwe-121 buffer overflow in the stack-based memory allocation context. the attack vector requires local user access and can be executed through crafted driver installation or exploitation of existing driver interfaces. the impact extends beyond simple privilege escalation as it enables full system compromise and persistence mechanisms. attackers can leverage this vulnerability to install rootkits, modify system files, or establish backdoors without detection. the exploit typically follows a pattern where malicious input triggers a kernel memory corruption that allows arbitrary code execution with system privileges. this vulnerability aligns with attack technique t1068 privilege escalation through kernel exploits and represents a significant risk to enterprise environments. organizations running affected windows versions face potential complete system compromise if this vulnerability remains unpatched. the flaw demonstrates poor input validation practices in kernel mode code and highlights the importance of proper memory management in privileged execution contexts. microsoft has released security update kb5022913 addressing this vulnerability through enhanced input validation and memory protection mechanisms. the fix implements additional bounds checking and improves the security boundary between user mode and kernel mode execution contexts. organizations should prioritize patching this vulnerability immediately due to its high exploitability and potential for widespread compromise. the vulnerability also relates to cwe-787 out of bounds write conditions that occur in kernel memory management. security teams should monitor for potential exploitation attempts and implement network segmentation to limit lateral movement if compromise occurs. regular security assessments should include verification of patch compliance and monitoring for anomalous privilege escalation activities in system logs. the vulnerability underscores the critical need for robust kernel security and proper privilege separation mechanisms in operating system design.