CVE-2025-53702 is a vulnerability in the Vilar VS-IPC1002 IP camera series, specifically identified in version 1.1.0.18, where improper handling of exceptional conditions (CWE-755) leads to a denial-of-service (DoS) condition. The flaw resides in the device's web interface, particularly the /cgi-bin/action endpoint. An unauthenticated attacker who has access to the same local network can send a specially crafted HTTP request to this endpoint, triggering an unhandled exception or error state that causes the device to become completely unresponsive. Recovery from this state requires a manual power cycle or restart, as the device does not recover automatically. The vulnerability does not require authentication, user interaction, or remote internet access, limiting exploitation to local network attackers. The vendor has not issued any patches or advisories, and other versions beyond 1.1.0.18 have not been tested but may also be vulnerable. The CVSS 4.0 vector indicates low attack complexity and no privileges required, but the attack scope is limited to local network access. This vulnerability could be exploited by insiders, compromised devices, or attackers who gain local network access, potentially disrupting surveillance operations and security monitoring.

For European organizations, the impact of this vulnerability can be significant, especially in sectors relying on continuous video surveillance such as critical infrastructure, transportation, public safety, and corporate security. A successful DoS attack renders the affected IP cameras inoperative until manually restarted, creating blind spots in surveillance coverage. This can lead to missed detection of security incidents, unauthorized access, or delayed response to physical threats. The lack of vendor response and patches increases the risk exposure duration. Additionally, organizations with large deployments of these cameras may face operational challenges in identifying and restarting affected devices promptly. The requirement for local network access limits remote exploitation but does not eliminate risk from insider threats or lateral movement by attackers who have breached internal networks. The disruption could also affect compliance with regulatory requirements for physical security and monitoring.

1. Network Segmentation: Isolate IP cameras on a dedicated VLAN or subnet with strict access controls to limit local network exposure. 2. Access Control: Restrict access to the camera management interface to authorized personnel and trusted devices only, using network ACLs or firewall rules. 3. Monitoring and Detection: Implement network monitoring to detect unusual or malformed requests targeting the /cgi-bin/action endpoint. 4. Physical Security: Ensure physical access to devices is controlled to prevent manual tampering or unauthorized restarts. 5. Incident Response: Develop procedures for rapid identification and manual restart of affected devices to minimize downtime. 6. Vendor Engagement: Continuously monitor for vendor updates or patches and apply them promptly once available. 7. Alternative Solutions: Consider replacing vulnerable devices with models from vendors that provide timely security updates and support. 8. Firmware Auditing: If possible, audit other versions of the firmware to assess vulnerability presence and prioritize upgrades or replacements accordingly.