CVE-2026-22876 is a path traversal vulnerability identified in the TRIFORA 3 series network cameras manufactured by TOA Corporation. This vulnerability arises due to improper limitation of pathname inputs, allowing a logged-in user with at least low-level monitoring privileges to access arbitrary files on the device filesystem outside the intended restricted directories. The flaw can be exploited remotely over the network without requiring user interaction, making it a network attack vector. The vulnerability impacts confidentiality by exposing potentially sensitive files stored on the device, such as configuration files, logs, or captured media, but does not affect integrity or availability. The CVSS 3.0 base score of 6.5 reflects a medium severity level, with attack vector as network (AV:N), low attack complexity (AC:L), low privileges required (PR:L), no user interaction (UI:N), unchanged scope (S:U), high confidentiality impact (C:H), and no impact on integrity or availability (I:N/A:N). No public exploits have been reported yet, but the vulnerability could be leveraged by insiders or attackers who have obtained monitoring credentials. The affected versions are not explicitly listed but are indicated to be those specified by the vendor. The vulnerability was published on January 16, 2026, and assigned by JPCERT. This vulnerability is particularly concerning for organizations relying on these cameras for security monitoring, as unauthorized file access could lead to leakage of sensitive information or aid further attacks.

For European organizations, this vulnerability poses a confidentiality risk by allowing unauthorized access to arbitrary files on network cameras, potentially exposing sensitive surveillance data, configuration details, or credentials stored on the device. This could facilitate further lateral movement or targeted attacks within the network. Organizations in sectors such as critical infrastructure, government, transportation, and large enterprises that deploy TOA Corporation’s TRIFORA 3 series cameras for security monitoring are at heightened risk. The exposure of sensitive files could lead to privacy violations, regulatory non-compliance (e.g., GDPR), and reputational damage. Since the vulnerability requires only low-level monitoring privileges, attackers who compromise or misuse such accounts can exploit this flaw. The lack of impact on integrity and availability limits the risk of disruption but does not diminish the importance of protecting confidentiality. The medium severity score suggests a moderate but actionable risk that should be addressed promptly to prevent potential data leaks and escalation of attacks.

1. Apply vendor-provided patches or firmware updates as soon as they become available to remediate the path traversal vulnerability. 2. Restrict and audit monitoring user privileges rigorously, ensuring that only trusted personnel have access to low-level accounts on the cameras. 3. Implement network segmentation to isolate network cameras from critical systems and limit access to the camera management interfaces to trusted networks or VPNs. 4. Employ strong authentication mechanisms for camera access, including multi-factor authentication where supported. 5. Monitor access logs for unusual or unauthorized file retrieval attempts from the cameras. 6. Regularly review and update device configurations to minimize exposed services and unnecessary permissions. 7. Consider deploying intrusion detection/prevention systems (IDS/IPS) to detect exploitation attempts targeting path traversal vulnerabilities. 8. Educate security and IT teams about this vulnerability to ensure rapid response and mitigation.