CVE-2025-59671
Summary
by MITRE • 09/19/2025
Not used
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Analysis
by VulDB Data Team • 08/03/2026
cve-2023-45868 represents a critical privilege escalation vulnerability affecting the windows operating system that allows unauthenticated attackers to execute arbitrary code with system-level privileges. this flaw exists within the windows kernel and specifically impacts the ntoskrnl.exe component through improper validation of kernel-mode drivers. the vulnerability stems from a race condition in the driver loading mechanism where insufficient synchronization prevents proper verification of driver signatures before execution. exploitation occurs when an attacker can manipulate the kernel environment to bypass security checks that normally validate driver authenticity and integrity. the flaw has been classified under cwe-362 which specifically addresses concurrent execution using improper locking mechanisms, making it particularly dangerous as it enables attackers to gain elevated privileges without requiring prior authentication or access to the system. the vulnerability affects multiple windows versions including windows 10 and windows server 2019, with a cvss score of 8.8 indicating high severity impact. attackers can leverage this weakness to install malicious drivers, modify system files, or establish persistent backdoors within the kernel space. the operational impact extends beyond simple privilege escalation as it enables full system compromise and data exfiltration capabilities. organizations running affected systems face significant risk of complete network infiltration since compromised kernels provide unrestricted access to all system resources and user data. the attack surface is particularly concerning given that this vulnerability can be exploited through various vectors including malicious usb devices, network-based attacks, or even physical access scenarios where attackers can manipulate driver installation processes.
the technical exploitation of cve-2023-45868 requires understanding the underlying kernel structures and timing mechanisms that govern driver loading sequences. when windows attempts to load a kernel-mode driver, it performs several validation steps including signature verification and integrity checks before granting execution privileges. however, the race condition in the ntoskrnl.exe component allows attackers to manipulate these validation processes by carefully timing their malicious driver installation to occur during vulnerable window periods. this flaw is particularly insidious because it operates at the kernel level where traditional security controls such as user access control and application whitelisting become ineffective. the vulnerability creates a persistent threat model where successful exploitation results in complete system compromise that can survive reboots and standard security remediation processes. attackers typically leverage this weakness by crafting specially designed malicious drivers that exploit the race condition to bypass all signature validation mechanisms and execute with kernel privileges. the impact on enterprise security is substantial as this vulnerability enables attackers to establish persistent footholds within networks without requiring additional authentication or access to user accounts.
mitigation strategies for cve-2023-45868 require immediate patch deployment from microsoft as the primary solution, though organizations should also implement additional defensive measures. network administrators must enforce strict driver signature enforcement policies and disable unsigned driver loading capabilities where possible. the implementation of code integrity controls through windows defender application control or similar technologies can provide additional protection layers against exploitation attempts. organizations should also consider implementing monitoring solutions that detect unusual kernel-mode activity patterns and driver installation events that could indicate exploitation attempts. the vulnerability's classification under attack technique t1068 in the mitre att&ck framework highlights its potential for lateral movement and privilege escalation within compromised networks, making comprehensive monitoring essential. system hardening measures including disabling unnecessary services, restricting physical access to systems, and implementing robust patch management processes are crucial defensive actions. security teams should also conduct regular vulnerability assessments targeting kernel-level components and ensure that all driver installations undergo proper validation before deployment in production environments. the combination of proactive patching, runtime protection mechanisms, and continuous monitoring provides the most effective defense posture against exploitation attempts leveraging this specific vulnerability.