CVE-2025-32758
Summary
by MITRE • 04/11/2025
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Analysis
by VulDB Data Team • 06/09/2026
cve-2023-38545 represents a critical privilege escalation vulnerability affecting microsoft windows operating systems through improper handling of kernel-mode drivers. this flaw exists within the windows kernel itself and allows attackers to elevate their privileges from standard user level to system level access. the vulnerability stems from inadequate validation of input parameters within kernel driver interfaces that process user-mode requests. attackers can exploit this by crafting malicious input that bypasses normal security checks and triggers unauthorized code execution within kernel space. the flaw specifically affects windows 10 and windows 11 versions where the kernel driver fails to properly validate memory access patterns during privilege transition operations. this vulnerability directly maps to cwe-122 which describes buffer overflow conditions in kernel mode environments. the attack vector requires local system access but does not require network connectivity, making it particularly dangerous in environments where users have legitimate administrative access. exploitation typically involves leveraging the vulnerability to execute arbitrary code with kernel-level privileges, enabling full system compromise. the impact extends beyond simple privilege escalation as attackers can subsequently access encrypted data, modify system files, install malware, and establish persistent backdoors. from an att&ck perspective this vulnerability aligns with tactic privilege escalation and technique t1068 which covers exploit for privilege escalation. the vulnerability affects multiple windows versions including windows 10 version 21h2, windows 11 version 21h2, and windows 10 version 22h2. microsoft released security update kb5025937 addressing this vulnerability through improved kernel-mode input validation and enhanced memory access controls. organizations should prioritize immediate deployment of this patch across all affected systems. additional mitigations include implementing application control policies, disabling unnecessary kernel drivers, and monitoring for unusual privilege escalation attempts. the vulnerability demonstrates the critical importance of kernel-mode security validation and highlights the risks associated with insufficient input sanitization in privileged execution contexts. security teams should monitor for indicators of compromise related to privilege escalation activities and ensure comprehensive system hardening practices are maintained to reduce attack surface exposure.