CVE-2025-21272 refers to a medium-severity information disclosure vulnerability in Microsoft Windows COM Server. This vulnerability allows attackers with low privileges to access sensitive information present in the memory of the COM Server. The CVSS score for this vulnerability is 6.5, indicating a medium level of risk due to its potential impact on confidentiality.
Given its nature, the risk to organizations includes unauthorized information access, potentially leading to further exploitation. As multiple versions of Windows are affected, it is imperative for organizations to assess their exposure and implement necessary measures.
As of now, there is no known public exploit for this vulnerability, but organizations should not underestimate the threat posed by local attackers. Organizations should prioritize patching immediately to mitigate risks associated with this vulnerability.
The vulnerability was published on January 14, 2025, and Microsoft has provided advisory information for remediation.
Vulnerability Details
The Windows COM Server Information Disclosure Vulnerability (CVE-2025-21272) is classified as CWE-908. The vulnerability specifically affects Windows 10 (various versions), Windows 11, and multiple Windows Server editions, with a common attack vector being local access.
This vulnerability has a CVSS 3.1 score of 6.5, indicating a medium severity. The attack complexity is low, and the privileges required to exploit it are also low, meaning that even users with limited access could potentially exploit it.
The confidentiality impact is high, while integrity and availability impacts are none. Organizations must ensure that they are running updated versions of the affected products to protect against potential exploitation.
Technical Analysis
The root cause of this vulnerability lies in improper management of COM Server memory, which can lead to unauthorized information disclosure. The attack vector is local, meaning that an attacker must have physical or remote access to the system. The attack complexity is low, as the required privileges to exploit this vulnerability are minimal.
User interaction is not required for exploitation, making this vulnerability particularly concerning. The high confidentiality impact suggests that sensitive user data or system information could be accessed by an attacker.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2025-21272 is significant due to the high confidentiality impact. Organizations running vulnerable versions of Windows could face data breaches if an attacker successfully exploits this vulnerability.
Given the low attack complexity and the potential for unauthorized access to sensitive information, the blast radius of this vulnerability could be large, affecting numerous systems within an organization.
Organizations should assess their exposure based on the CVSS score and take immediate action to patch affected systems. Prioritizing remediation efforts is crucial to mitigate risks associated with this vulnerability.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions include various releases of Windows 10 (1507, 1607, 1809, 21H2, 22H2), Windows 11 (22H2, 23H2, 24H2), and Windows Server editions (2008, 2012, 2016, 2019, 2022, 2025). All versions prior to the vendor patch are considered vulnerable.
Mitigation & Remediation
Organizations should review and apply the latest Microsoft patches to remediate this vulnerability. It is essential to upgrade to the latest versions of affected products to ensure security. If a patch is unavailable, organizations should consider implementing workarounds such as restricting access to affected systems and monitoring for suspicious activities.
For more comprehensive security, organizations may also engage in penetration testing to validate their security posture and identify potential weaknesses.
Detection Guidance
Organizations should monitor their systems for any unusual behavior that may indicate exploitation attempts. This includes tracking log indicators, behavioral anomalies, and system changes that may suggest unauthorized access.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-21272 highlights the ongoing risks associated with information disclosure vulnerabilities in widely used systems. The potential for local exploitation necessitates a proactive approach to security, including regular patching and security assessments.
Organizations should remain vigilant and adapt their security strategies to address such vulnerabilities, as they often represent a broader trend of increasing sophistication in attack methods.
To understand more about vulnerability management, organizations can refer to vulnerability management program designs and best practices.
Engaging in penetration testing methodology can provide insights into improving an organization’s security posture.
Lastly, organizations might benefit from understanding the best practices in AI security to bolster their defenses further.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
.webp)