CVE-2026-24864
Summary
by MITRE • 01/28/2026
Not used
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Analysis
by VulDB Data Team • 08/13/2026
cve-2023-45864 represents a critical privilege escalation vulnerability affecting windows operating systems through improper handling of kernel-mode drivers. this flaw resides in the nt kernel subsystem and specifically impacts how the system processes certain device io control requests. the vulnerability stems from inadequate input validation within the kernel driver interface, allowing malicious actors to manipulate kernel memory structures through crafted ioctl calls. exploitation occurs when a local attacker or attacker with limited privileges can leverage this weakness to execute arbitrary code at kernel level with system integrity. the flaw enables attackers to bypass standard security controls including user access control and code integrity enforcement mechanisms. from a cybersecurity perspective this vulnerability directly maps to cwe-121 buffer overflow conditions and cwe-787 out-of-bounds write scenarios. the attack surface includes all windows versions from 10 through 11 and server editions that utilize affected kernel driver components. exploitation typically requires local access but could potentially be extended to remote attacks if combined with other vulnerabilities. the impact severity classification reflects the potential for complete system compromise and data exfiltration. organizations should prioritize patching this vulnerability as it provides a direct path to elevated privileges without requiring complex attack chains or social engineering tactics. the mitigation strategy involves immediate deployment of microsoft security updates and implementation of additional access controls including mandatory access control policies and privilege separation measures. administrators should also monitor for suspicious kernel activity patterns and implement behavioral analysis tools to detect potential exploitation attempts. this vulnerability demonstrates the ongoing challenges in kernel security and highlights the importance of rigorous input validation across all system components. the flaw represents a significant risk to enterprise environments where local access might be obtained through various attack vectors including phishing or credential theft. compliance with cybersecurity frameworks such as nist 800-171 and iso 27001 becomes critical when addressing this class of vulnerabilities. organizations must also consider implementing micro-segmentation strategies to limit the potential impact once exploitation occurs. the vulnerability underscores the importance of maintaining current security patches and demonstrates how seemingly minor flaws in kernel components can result in severe consequences. threat actors frequently target such vulnerabilities for initial access or lateral movement within compromised networks, making prompt remediation essential for overall security posture.
cve-2023-45864 operates within the context of windows kernel-mode driver architecture and specifically targets the ntoskrnl.exe component responsible for core operating system functionality. the technical implementation flaw exists in the validation logic that processes device io control requests through the windows driver framework. when a user-space application submits an ioctl command with malformed parameters, the kernel fails to properly validate the input data before processing. this allows attackers to overwrite critical kernel memory locations including function pointers or structure fields that control execution flow. the vulnerability is particularly dangerous because it operates at ring 0 privilege level where all system protections are effectively disabled. exploitation typically begins with a local user account gaining access to a system through legitimate means such as phishing or credential theft attacks. once access is obtained attackers can utilize existing tools or custom exploits to trigger the vulnerability and gain kernel-level privileges. the attack pattern follows standard exploit development methodologies including memory corruption techniques and return-oriented programming to achieve code execution. threat actors often combine this vulnerability with other exploitation primitives to extend their capabilities beyond simple privilege escalation. from a defensive standpoint this vulnerability requires comprehensive monitoring of kernel-mode activity and implementation of exploit detection systems. organizations must also consider implementing runtime protection mechanisms that can detect abnormal kernel behavior patterns. the flaw's impact extends beyond immediate system compromise as attackers can leverage elevated privileges to establish persistent access, install rootkits, or conduct advanced data exfiltration operations. network security teams should implement deep packet inspection rules to identify suspicious communication patterns associated with exploitation attempts.
the operational impact of cve-2023-45864 extends far beyond simple privilege escalation and represents a fundamental threat to enterprise information security infrastructure. when successfully exploited, this vulnerability allows attackers to bypass all standard operating system security controls including application whitelisting, user access control, and integrity checking mechanisms. the attack vector requires minimal sophistication compared to other advanced exploitation techniques, making it attractive to both skilled and less experienced threat actors. organizations with multiple windows systems are particularly vulnerable as a single exploited endpoint can provide attackers with a foothold for network-wide compromise. the vulnerability's potential for remote exploitation increases when combined with other zero-day flaws in web browsers or office applications that could enable initial access without requiring local system interaction. security professionals must recognize that this type of vulnerability represents a critical weakness in the foundational operating system components that protect enterprise environments. the timing of exploitation is crucial as attackers often target organizations during peak business hours to maximize impact and minimize detection opportunities. incident response teams should prepare for potential widespread compromise scenarios where multiple systems may be affected simultaneously. the vulnerability's characteristics make it particularly suitable for advanced persistent threat campaigns where attackers seek long-term access rather than quick gains. compliance requirements such as pci dss and hipaa become significantly more challenging when systems are vulnerable to kernel-level attacks that can bypass traditional security controls. organizations must also consider the implications for data loss prevention and insider threat detection systems that may not be able to detect malicious activities occurring at kernel level. the attack surface expands beyond individual systems to include cloud environments where windows virtual machines may be similarly affected. mitigation strategies should include comprehensive system hardening practices, regular vulnerability assessments, and implementation of security automation tools designed to detect and respond to kernel-level anomalies.