The digital landscape consistently presents new challenges for cybersecurity professionals, and proactive defense is paramount. A recent development demanding immediate attention is the addition of a critical Digiever authorization vulnerability to CISA’s Known Exploited Vulnerabilities (KEV) catalog. This isn’t just another vulnerability; it signifies active exploitation in the wild, underscoring the urgent need for organizations to understand and mitigate the risk.

CISA Adds Digiever Authorization Vulnerability to KEV List: What You Need to Know

On December 22, 2025, the Cybersecurity and Infrastructure Security Agency (CISA) escalated the status of a significant security flaw affecting Digiever DS-2105 Pro network video recorders. This vulnerability, identified as CVE-2023-52163, has been officially added to the KEV catalog. This crucial inclusion indicates that threat actors are actively leveraging this flaw, making immediate action necessary for any organization utilizing the affected devices.

Understanding CVE-2023-52163: A Missing Authorization Flaw

CVE-2023-52163 is categorized as a missing authorization vulnerability within Digiever DS-2105 Pro devices. In essence, this means that the affected systems fail to properly verify the permissions of a user or process attempting to perform an action. For an attacker, this represents a golden opportunity.

Specifically, this vulnerability enables unauthorized command execution through the time_tzsetup—cgi interface. This interface, likely intended for configuration of time and timezone settings, can be manipulated by malicious actors to inject and run arbitrary commands on the vulnerable device. Such unauthorized access can lead to a cascade of devastating consequences, including data theft, system compromise, or even the deployment of further malicious payloads within an organization’s network.

Implications of Active Exploitation

The transition of CVE-2023-52163 to the KEV catalog signals a critical shift. It moves from a theoretical vulnerability to a real-world threat. Active exploitation means:

• Increased Risk: Organizations using vulnerable Digiever DS-2105 Pro devices face an immediate and elevated risk of compromise.
• Sophistication of Attacks: Threat actors have developed working exploits for this flaw, suggesting a level of sophistication and targeting.
• Urgency for Remediation: CISA’s directive for federal agencies to address KEV vulnerabilities within specific timelines underscores the severity for all organizations.

Remediation Actions for Digiever DS-2105 Pro Users

Given the active exploitation, organizations must prioritize remediation efforts immediately. Here are actionable steps to mitigate the risk posed by :

• Identify Affected Devices: Conduct a thorough inventory of your network to identify all Digiever DS-2105 Pro network video recorders.
• Consult Vendor for Patches: The primary remediation is to apply any official security patches or firmware updates released by Digiever. Regularly check the official Digiever support portal for updates related to this CVE.
• Isolate or Decommission (if no patch available): If official patches are not yet available, consider isolating the devices from the main network or, if feasible, decommissioning them until a secure solution is provided. Implement strict network segmentation to limit potential lateral movement by attackers.
• Implement Access Controls: Enforce the principle of least privilege for any systems or users interacting with these devices. Restrict network access to the time_tzsetup—cgi interface if possible, or only permit access from trusted IP addresses.
• Monitor for Suspicious Activity: Enhance monitoring for any unusual activity originating from or targeting Digiever DS-2105 Pro devices. Look for unauthorized command execution attempts, unusual outbound connections, or changes to system configurations.
• Regular Security Audits: Conduct regular security audits and penetration tests to identify and address potential weaknesses in your network infrastructure, including IoT and edge devices.

Essential Tools for Vulnerability Detection and Mitigation

Leveraging the right tools can significantly aid in detecting and mitigating vulnerabilities like CVE-2023-52163.

Tool Name	Purpose	Link
Tenable Nessus	Vulnerability scanning and assessment to identify vulnerable devices.	https://www.tenable.com/products/nessus
OpenVAS	Open-source vulnerability scanner for comprehensive network assessments.	https://www.openvas.org/
Snort	Network intrusion detection system (NIDS) to monitor for malicious traffic patterns and exploitation attempts.	https://www.snort.org/
Wireshark	Network protocol analyzer for deep inspection of network traffic to identify suspicious activity.	https://www.wireshark.org/

Protecting Your Perimeter

The inclusion of CVE-2023-52163 in CISA’s KEV catalog serves as a stark reminder that even seemingly innocuous devices like network video recorders can become critical entry points for attackers. Organizations must prioritize continuous vulnerability management, apply patches diligently, and maintain robust security monitoring to protect their digital assets from evolving threats. Proactive defense is the most effective defense.