EUVD-2025-29039

Comprehensive Technical Analysis of EUVD-2025-29039

1. Vulnerability Assessment and Severity Evaluation

The vulnerability described in EUVD-2025-29039 pertains to an OS Command Injection flaw in certain models of Network Video Recorders (NVRs) developed by Digiever. This vulnerability allows unauthenticated remote attackers to inject arbitrary OS commands and execute them on the device. The CVSS (Common Vulnerability Scoring System) base score of 9.3 indicates a critical severity level. The CVSS vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N breaks down as follows:

• Attack Vector (AV): Network (N) - The vulnerability is exploitable over the network.
• Attack Complexity (AC): Low (L) - The attack requires minimal skill or resources.
• Authentication (AT): None (N) - No authentication is required to exploit the vulnerability.
• Privileges Required (PR): None (N) - No special privileges are needed.
• User Interaction (UI): None (N) - No user interaction is required.
• Confidentiality (VC): High (H) - The vulnerability has a high impact on confidentiality.
• Integrity (VI): High (H) - The vulnerability has a high impact on integrity.
• Availability (VA): High (H) - The vulnerability has a high impact on availability.
• Scope (SC): Not Changed (N) - The vulnerability does not change the security scope.
• Scope Integrity (SI): Not Changed (N) - The integrity scope is not changed.
• Scope Availability (SA): Not Changed (N) - The availability scope is not changed.

2. Potential Attack Vectors and Exploitation Methods

Given the nature of the vulnerability, potential attack vectors include:

• Remote Code Execution (RCE): Attackers can inject malicious commands through network interfaces, leading to arbitrary code execution on the NVR.
• Data Exfiltration: Attackers can extract sensitive data stored on the NVR, including video footage and configuration files.
• Denial of Service (DoS): Attackers can disrupt the normal operation of the NVR, rendering it unavailable for legitimate users.
• Lateral Movement: Once compromised, the NVR can be used as a pivot point to attack other devices within the same network.

3. Affected Systems and Software Versions

The vulnerability affects multiple models of Digiever NVRs, specifically:

• DS-4200 UHD
• DS-2200 UHD
• DS-4200 UHD+
• DS-8x00-RM UHD
• DS-4200 Pro
• DS-16x00-RM UHD
• DS-4100-RM
• DS-2100 Pro
• DS-2100 UHD
• DS-8x00-SRM Pro+
• DS-8x00-RM Pro+
• DS-1200
• DS-2100 Pro+
• DS-4200-RM Pro+
• DS-16x00-RM Pro+
• DS-4200 Pro+
• DS-4200-RM UHD
• DS-2200 UHD+

All versions up to and including 0 ≤..*.78 are affected.

4. Recommended Mitigation Strategies

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

• Patch Management: Apply the latest firmware updates provided by Digiever as soon as they are available.
• Network Segmentation: Isolate NVRs on a separate network segment to limit lateral movement.
• Access Control: Implement strict access controls and authentication mechanisms to restrict access to the NVRs.
• Monitoring and Logging: Enable comprehensive logging and monitoring to detect and respond to suspicious activities.
• Firewall Rules: Implement firewall rules to restrict inbound and outbound traffic to and from the NVRs.
• Intrusion Detection Systems (IDS): Deploy IDS to detect and alert on potential exploitation attempts.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to organizations and individuals using Digiever NVRs within the European Union. The potential for unauthenticated remote command injection can lead to severe breaches of confidentiality, integrity, and availability, impacting critical infrastructure, businesses, and personal privacy. The widespread use of NVRs in surveillance systems makes this vulnerability particularly concerning, as it can compromise the security of sensitive environments such as government facilities, financial institutions, and healthcare providers.

6. Technical Details for Security Professionals

For security professionals, the following technical details are pertinent:

• Exploitation Techniques: The vulnerability can be exploited by crafting specially designed network packets that include malicious OS commands. These commands can be injected through various input vectors, such as web interfaces or API endpoints.
• Detection Methods: To detect potential exploitation attempts, security professionals should look for unusual network traffic patterns, unexpected command execution on the NVR, and unauthorized access attempts.
• Incident Response: In the event of a suspected compromise, incident response teams should isolate the affected NVR, conduct a thorough forensic analysis, and implement containment measures to prevent further damage.
• Vendor Communication: Security professionals should maintain open communication channels with Digiever to receive timely updates and patches.

Conclusion

The OS Command Injection vulnerability in Digiever NVRs, as described in EUVD-2025-29039, represents a critical threat to cybersecurity. Organizations must prioritize patching affected systems, implementing robust security controls, and maintaining vigilant monitoring to mitigate the risks associated with this vulnerability. Collaboration between security professionals, vendors, and regulatory bodies is essential to address this issue effectively and protect the European cybersecurity landscape.