EUVD-2025-4171

Comprehensive Technical Analysis of EUVD-2025-4171

1. Vulnerability Assessment and Severity Evaluation

The vulnerability identified as EUVD-2025-4171, also known as CVE-2025-26359, is classified under CWE-306 "Missing Authentication for Critical Function." This vulnerability affects the maxprofile/accounts/routes.lua file in Q-Free MaxTime versions up to and including 2.11.0. The severity of this vulnerability is rated with a CVSS Base Score of 9.8, which is considered critical.

The CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H indicates the following:

• Attack Vector (AV): Network (N) - The vulnerability is exploitable over the network.
• Attack Complexity (AC): Low (L) - The attack requires minimal skill or resources.
• Privileges Required (PR): None (N) - No privileges are required to exploit the vulnerability.
• User Interaction (UI): None (N) - No user interaction is required.
• Scope (S): Unchanged (U) - The vulnerability does not change the security scope.
• Confidentiality (C): High (H) - There is a high impact on confidentiality.
• Integrity (I): High (H) - There is a high impact on integrity.
• Availability (A): High (H) - There is a high impact on availability.

2. Potential Attack Vectors and Exploitation Methods

The vulnerability allows an unauthenticated remote attacker to reset user PINs via crafted HTTP requests. Potential attack vectors include:

• Direct Network Access: An attacker with network access to the vulnerable system can send specially crafted HTTP requests to reset user PINs.
• Man-in-the-Middle (MitM) Attacks: An attacker intercepting network traffic could inject malicious HTTP requests to exploit the vulnerability.
• Phishing and Social Engineering: Attackers could trick users into visiting malicious websites that send crafted HTTP requests to the vulnerable system.

3. Affected Systems and Software Versions

The vulnerability affects Q-Free MaxTime versions up to and including 2.11.0. Organizations using these versions are at risk and should prioritize updating to a patched version.

4. Recommended Mitigation Strategies

To mitigate the risk associated with this vulnerability, the following strategies are recommended:

• Patch Management: Immediately update to the latest version of Q-Free MaxTime that addresses this vulnerability.
• Network Segmentation: Implement network segmentation to limit access to the vulnerable system.
• Access Controls: Enforce strict access controls and authentication mechanisms to prevent unauthorized access.
• Monitoring and Logging: Implement robust monitoring and logging to detect and respond to suspicious activities.
• User Education: Educate users about phishing and social engineering attacks to reduce the risk of exploitation through these vectors.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to organizations using Q-Free MaxTime within the European Union. Given the critical nature of the vulnerability, it could lead to unauthorized access, data breaches, and disruption of services. This underscores the importance of timely patch management and robust cybersecurity practices within the EU.

6. Technical Details for Security Professionals

Vulnerability Details:

• File Affected: maxprofile/accounts/routes.lua
• Vulnerability Type: Missing Authentication for Critical Function
• Exploit Method: Crafted HTTP requests to reset user PINs

Detection and Response:

• Intrusion Detection Systems (IDS): Configure IDS to detect and alert on suspicious HTTP requests targeting the vulnerable endpoint.
• Security Information and Event Management (SIEM): Integrate SIEM solutions to correlate and analyze logs for indicators of compromise.
• Incident Response Plan: Develop and implement an incident response plan to quickly address any detected exploitation attempts.

References:

• Nozomi Networks Vulnerability Advisory
• NVD Detail for CVE-2025-26359

By addressing this vulnerability promptly and implementing the recommended mitigation strategies, organizations can significantly reduce the risk of exploitation and protect their critical assets.