CVE-2026-0853 identifies a vulnerability in the A-Plus Video Technologies AP-RM864P network video recorder (NVR) devices. The flaw is categorized under CWE-497, which involves the exposure of sensitive system information to unauthorized entities. Specifically, the vulnerability allows unauthenticated remote attackers to access the device's debug page, which is not properly secured. This debug page reveals device status information that could include configuration details, operational status, or other sensitive metadata. The vulnerability has a CVSS 4.0 base score of 6.9, indicating medium severity, with attack vector being network (AV:N), no required privileges (PR:N), no user interaction (UI:N), and no authentication (AT:N). The impact is limited to information disclosure (VC:L), with no direct impact on integrity or availability. The vulnerability is exploitable remotely without authentication, making it accessible to attackers scanning for vulnerable devices. Although no patches or exploits are currently documented, the exposure of debug information can facilitate further attacks such as targeted exploitation or lateral movement within a network. The affected product is the AP-RM864P model, with no specific affected versions detailed beyond version '0', suggesting the vulnerability may be present in initial or all firmware versions. The vulnerability was published on January 12, 2026, by the Taiwan Computer Emergency Response Team (twcert).

For European organizations, this vulnerability poses a risk primarily to confidentiality. Exposure of sensitive device status information can provide attackers with valuable intelligence to plan further attacks, such as identifying firmware versions, network configurations, or security settings. This reconnaissance capability can lead to more sophisticated exploitation attempts, including privilege escalation or denial of service. Organizations relying on these NVRs for video surveillance, especially in critical infrastructure sectors like transportation, energy, or government facilities, may face increased risk of targeted attacks. The lack of authentication and ease of remote exploitation increase the attack surface, particularly for devices exposed to untrusted networks or the internet. While the vulnerability does not directly impact device integrity or availability, the information disclosure can indirectly facilitate attacks that compromise these aspects. Additionally, regulatory compliance frameworks in Europe, such as GDPR, may consider unauthorized exposure of system information a data protection concern, potentially leading to legal and reputational consequences.

To mitigate CVE-2026-0853, European organizations should implement network segmentation to isolate NVR devices from untrusted networks and restrict access to management interfaces. Employ firewall rules or access control lists (ACLs) to limit connections to the debug page only from trusted administrative hosts. If possible, disable or restrict the debug interface on the AP-RM864P devices to prevent unauthorized access. Regularly audit device configurations and network traffic logs to detect any unauthorized access attempts or unusual activity targeting the debug page. Apply any available firmware updates or patches from A-Plus Video Technologies as they become available, even though none are currently published. Consider deploying intrusion detection/prevention systems (IDS/IPS) tuned to detect reconnaissance or exploitation attempts against these devices. Finally, maintain an asset inventory to identify all deployed AP-RM864P devices and assess their exposure to external networks, prioritizing remediation efforts accordingly.