CVE-2025-0065 identifies a high-severity vulnerability in the TeamViewer_service.exe component of TeamViewer Clients prior to version 15.62. This vulnerability allows an attacker with local unprivileged access on a Windows system to elevate privileges through argument injection. The CVSS score for this issue is 7.8, indicating a significant potential impact on the confidentiality, integrity, and availability of affected systems.
The risk to organizations includes unauthorized access to sensitive data and system control, which could lead to further exploitation of the network or system. Given the nature of this vulnerability and its local attack vector, organizations should prioritize patching immediately.
Currently, there are no known exploits for this vulnerability, and it has not been included in the Known Exploited Vulnerabilities (KEV) catalog. However, the potential for local exploitation necessitates a proactive approach to risk management.
Organizations should monitor their systems for updates from TeamViewer and implement the necessary patches as soon as they become available.
Vulnerability Details
The vulnerability is classified as improper neutralization of argument delimiters, which leads to potential privilege escalation. The CVSS vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, indicating low attack complexity and low privileges required for exploitation. This vulnerability was published on January 28, 2025.
The affected product is TeamViewer Clients prior to version 15.62, with the weakness identified as CWE-88. Organizations using these versions are advised to be particularly vigilant.
Technical Analysis
The root cause of this vulnerability lies in the improper handling of argument delimiters within the TeamViewer_service.exe component. This flaw allows attackers to inject malicious arguments, thereby altering the expected behavior of the application and potentially gaining elevated privileges.
The attack vector is local, meaning that the attacker must have access to the system where TeamViewer is installed. The attack complexity is low, and no user interaction is required, making this vulnerability particularly concerning for organizations.
The confidentiality, integrity, and availability impacts are all rated as high, indicating that successful exploitation could lead to significant compromises in system security.
Risk & Impact Analysis
The real-world deployment risk for this vulnerability is substantial, especially in environments where TeamViewer is widely used for remote access. Given the ease of exploitation and the potential for significant impact, organizations must take this threat seriously.
The blast radius for this vulnerability is potentially extensive, as it could allow an attacker to gain control over crucial systems and access sensitive data. Therefore, organizations should address this vulnerability in their priority patch cycle.
Based on the CVSS score and the absence of known exploitations, the urgency for remediation is high. Organizations should ensure that all systems running affected versions of TeamViewer are updated promptly.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions prior to vendor patch, specifically TeamViewer Clients prior to version 15.62 are affected by this vulnerability.
Mitigation & Remediation
To mitigate this vulnerability, organizations should update to TeamViewer Clients version 15.62 or later. If an update is not immediately available, consider implementing workarounds such as restricting access to the application or monitoring for unusual activity that could indicate exploitation attempts.
For further guidance, organizations can consult resources on penetration testing and application security best practices.
Detection Guidance
Organizations should monitor logs for indicators of unauthorized access attempts and unusual behavior involving the TeamViewer service. Behavioral anomalies may also indicate exploitation.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-0065 highlights the importance of secure coding practices and thorough testing of input handling in applications. This vulnerability represents a pattern seen in many software applications where local privilege escalation can occur due to inadequate validation.
Security teams should take lessons from this vulnerability to strengthen their development lifecycle by implementing rigorous security testing and validation protocols. For comprehensive security strategies, organizations can refer to the following resources:
penetration testing methodology, vulnerability management program design, and security testing best practices to enhance overall security posture.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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