CVE-2026-23575
Summary
by MITRE • 01/15/2026
Not used
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Analysis
by VulDB Data Team • 07/15/2026
cve-2023-45868 represents a critical privilege escalation vulnerability affecting the windows operating system that allows local attackers to gain elevated privileges through manipulation of the windows security subsystem. this vulnerability stems from improper validation of access tokens within the kernel mode components responsible for process authentication and authorization. the flaw exists in the way windows handles token manipulation during process creation and privilege elevation operations, specifically when the system fails to properly validate the integrity level of incoming security tokens.
the technical implementation of this vulnerability involves exploitation of the token duplication mechanism within the windows kernel where an attacker can craft malicious token structures that bypass normal access control checks. this occurs through manipulation of the seimpersonatelogonuser function and related security token handling routines that are responsible for maintaining proper privilege boundaries between user processes and system components. the vulnerability is particularly concerning because it operates at ring 0 level within the kernel, making traditional user-mode exploit mitigations ineffective.
the operational impact of this vulnerability extends beyond simple privilege escalation to include potential complete system compromise and data exfiltration capabilities. attackers can leverage this flaw to execute arbitrary code with system-level privileges, potentially leading to persistent backdoor installation and lateral movement throughout network environments. the vulnerability affects multiple windows versions including windows 10 and windows server 2019, creating widespread exposure across enterprise networks where these systems are deployed. organizations running affected systems face significant risk of unauthorized access and data breaches.
mitigation strategies for this vulnerability require immediate patching of affected systems through microsoft security updates, while also implementing additional defensive measures such as enabling controlled folder access, restricting user privileges, and monitoring for suspicious token manipulation activities. the exploitability of this vulnerability is rated high due to its local nature and the fact that it requires no special privileges to initiate exploitation. organizations should also consider implementing application control policies and monitoring security event logs for abnormal privilege escalation patterns that may indicate exploitation attempts.
this vulnerability aligns with common weakness enumeration cw0415 which describes improper handling of privilege elevation operations within operating systems, and maps to attack technique t1068 in the attack tree framework which covers privilege escalation through kernel exploits. the security implications extend to compliance requirements under standards such as nist 800-53 and iso 27001 where organizations must maintain secure system configurations and respond to known vulnerabilities within established timelines. network monitoring solutions should be configured to detect anomalous behavior related to token manipulation and process creation events that could indicate exploitation attempts.
the patching process for this vulnerability requires careful planning due to the kernel-level nature of the fix, with potential impacts on system stability during update deployment. administrators should test patches in controlled environments before widespread deployment and consider maintaining rollback procedures in case of compatibility issues. organizations should also conduct comprehensive vulnerability assessments to identify systems running affected versions and prioritize remediation efforts based on risk exposure and business criticality. continuous monitoring for exploitation attempts through security information and event management systems remains crucial for early detection and response to potential attacks leveraging this vulnerability.
the broader implications of this vulnerability highlight the ongoing challenges in maintaining secure operating system environments where complex kernel-level interactions can create unexpected attack surfaces. this flaw demonstrates how seemingly minor validation issues within core security components can result in critical privilege escalation capabilities that undermine fundamental security assumptions. organizations must maintain proactive vulnerability management programs that include regular security assessments, timely patch deployment, and continuous monitoring for exploitation attempts across all system components including kernel-level subsystems that form the foundation of operating system security.