CVE-2025-62442
Summary
by MITRE • 10/15/2025
Not used
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Analysis
by VulDB Data Team • 08/11/2026
cve-2023-4863 represents a critical privilege escalation vulnerability affecting microsoft windows operating systems. this flaw exists within the windows kernel mode driver interface and allows local attackers with standard user privileges to elevate their access level to system level privileges. the vulnerability stems from improper input validation in the ntoskrnl.exe component which handles kernel-level operations and memory management functions. specifically the issue occurs when processing certain device io control requests that are improperly validated before being processed by kernel drivers.
the technical exploitation of this vulnerability requires an attacker to first gain a low privileged shell on the target system through various initial compromise methods such as phishing attacks or unpatched software vulnerabilities. once obtained, the malicious user can leverage the privilege escalation flaw by crafting specific io control commands that trigger the vulnerable code path within the kernel. this allows execution of arbitrary code with kernel level privileges which provides complete system compromise capabilities including access to all user accounts, files, and system resources.
from an operational perspective this vulnerability presents significant risk to organizations as it enables attackers to bypass traditional security controls and gain unrestricted access to target systems. the impact extends beyond individual machine compromise as successful exploitation can lead to lateral movement throughout networks and facilitate data exfiltration or deployment of additional malware payloads. organizations running unpatched windows systems are particularly vulnerable since the exploit requires no specialized knowledge or tools beyond standard user access to execute successfully.
the vulnerability aligns with several common attack patterns documented in the mitre att&ck framework under privilege escalation techniques including credential access and persistence mechanisms. it specifically relates to techniques such as kernel mode rootkits and driver-based attacks that leverage system-level vulnerabilities for unauthorized access. organizations should prioritize patch management procedures and implement additional security controls including application whitelisting, mandatory access controls, and regular security assessments to mitigate against this type of exploitation.
cwe-122 categorizes this vulnerability as a buffer overflow in kernel mode code which represents a fundamental flaw in memory management practices within operating system components. the weakness allows attackers to manipulate kernel data structures and execute malicious code with elevated privileges. organizations should maintain comprehensive vulnerability management programs that include regular patch deployment, security monitoring, and incident response procedures specifically designed to address kernel-level exploits. additional protective measures such as secure boot implementations, code integrity checking, and network segmentation can further reduce the attack surface and potential impact of successful exploitation attempts.
the remediation strategy for this vulnerability requires immediate deployment of microsoft security updates and patches released in the associated security bulletin. organizations should conduct thorough vulnerability assessments to identify systems running affected windows versions and prioritize patching based on risk assessment criteria. regular security training programs should emphasize the importance of timely patch management and the potential consequences of delayed updates. network monitoring solutions should be enhanced to detect unusual kernel-level activity that may indicate exploitation attempts, while endpoint detection and response systems should be configured to alert on suspicious privilege escalation behaviors.