CVE-2025-30385 is a high-severity vulnerability affecting multiple Microsoft Windows versions, specifically related to a use after free condition in the Windows Common Log File System Driver. This vulnerability allows an authorized attacker to elevate privileges locally, potentially leading to unauthorized access and control over the affected system. The CVSS score for this vulnerability is 7.8, indicating a significant risk to organizations running vulnerable systems.
The real-world risk context for this vulnerability is concerning, as it can be exploited by individuals who already have local access to systems. Given the nature of the vulnerability, it is critical for organizations to assess their exposure and implement mitigations as soon as possible. The urgency for defenders is high, and organizations should prioritize patching immediately.
As of now, there are no public exploits confirmed for this vulnerability, which means that while it is critical to address, active exploitation may not yet be a concern. However, the potential for misuse remains, and organizations should be vigilant in monitoring their systems.
In summary, CVE-2025-30385 presents a high-severity risk that requires immediate attention from security teams. Organizations should not only apply patches but also evaluate their security policies and practices to prevent potential exploitation.
Vulnerability Details
The official description of CVE-2025-30385 states: 'Use after free in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally.' This vulnerability is classified under CWE-416, which pertains to the use after free weakness. The CVSS version 3.1 score of 7.8 indicates a high severity, with impacts on confidentiality, integrity, and availability.
Affected products include Windows 10 (various versions), Windows 11, and multiple Windows Server versions. The vulnerability was published on May 13, 2025.
Technical Analysis
The root cause of this vulnerability is a use after free flaw, which occurs when a program continues to use a pointer after it has been freed. Attackers may leverage this vulnerability to gain elevated privileges within the system, allowing them to execute arbitrary code with higher permissions than intended.
The attack vector for this vulnerability is local, meaning that an attacker must have local access to the system to exploit it. The attack complexity is classified as low, and the privileges required are also low. User interaction is not required, which increases the risk of exploitation. The impacts on confidentiality, integrity, and availability are all rated as high.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2025-30385 is significant, particularly for organizations that rely on the affected Windows versions. The ability for an attacker with local access to elevate privileges can lead to widespread consequences, including unauthorized data access and potential system compromise.
This vulnerability highlights the importance of maintaining robust security measures, including strict access controls and regular patch management. Organizations should assess their risk posture based on the systems they have in place and prioritize remediation efforts accordingly.
Given the CVSS score of 7.8, organizations should classify this vulnerability as high urgency. Immediate action is required to mitigate risks, including patching vulnerable systems and reviewing existing security protocols.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
CVE-2025-30385 affects the following versions of Microsoft Windows:
Windows 10 (1607, 1809, 21H2, 22H2), Windows 11 (22H2, 23H2, 24H2), and Windows Server (2008, 2012, 2016, 2019, 2022, 2025). Organizations using these versions should ensure they are updated with the latest patches.
Mitigation & Remediation
To mitigate the risks associated with CVE-2025-30385, organizations should apply the latest security patches provided by Microsoft. Ensuring that all affected Windows versions are updated is crucial. If a patch is not immediately available, organizations should consider implementing workarounds, such as restricting user permissions and monitoring system access.
For more comprehensive security practices, organizations can benefit from regular penetration testing to assess their security posture and identify similar vulnerabilities.
Detection Guidance
Organizations should monitor logs for any suspicious activity that may indicate an attempt to exploit this vulnerability. Behavioral anomalies, unusual access patterns, and any system changes should be investigated promptly. Additionally, implementing network signatures to detect potential exploit attempts can help in mitigating risks.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-30385 lies in the persistent nature of privilege escalation vulnerabilities within operating systems. Security teams should be aware of this trend and ensure they are employing effective security measures to mitigate risks. Organizations should also review their security training programs to address the growing landscape of local privilege escalation threats.
This vulnerability serves as a reminder of the importance of proactive security assessments. Regular penetration testing methodology should be integrated into security practices to identify and remediate vulnerabilities effectively.
Organizations should also focus on establishing a robust vulnerability management program to continuously assess and improve their security posture against emerging threats.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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