Original Article Summary

View CSAF 1. EXECUTIVE SUMMARY CVSS v4 6.1 ATTENTION: Exploitable remotely/Low attack complexity Vendor: Opto 22 Equipment: groov View Vulnerability: Exposure of Sensitive Information Through Metadata 2. RISK EVALUATION Successful exploitation of this vulnerability could result in credential exposure, key exposure, and privilege escalation. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following versions of groov View are affected: groov View Server for Windows: Versions R1.0a to R4.5d GRV-EPIC-PR1 Firmware: Versions prior to 4.0.3 GRV-EPIC-PR2 Firmware: Versions prior to 4.0.3 3.2 VULNERABILITY OVERVIEW 3.2.1 Exposure of Sensitive Information Through Metadata CWE-1230 The users endpoint in the groov View API returns a list of all users and associated metadata including their API keys. This endpoint requires an Editor role to access and will display API keys for all users, including Administrators. CVE-2025-13084 has been assigned to this vulnerability. A CVSS v3.1 base score of 7.6 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L). A CVSS v4 score has also been calculated for CVE-2025-13084. A base score of 6.1 has been calculated; the CVSS vector string is (AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N). 3.3 BACKGROUND CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing COUNTRIES/AREAS DEPLOYED: Worldwide COMPANY HEADQUARTERS LOCATION: United States 3.4 RESEARCHER Nik Tsytsarkin, Ismail Aydemir, and Ryan Hall of Meta reported this vulnerability to CISA. 4. MITIGATIONS Opto 22 has published a patch to address this vulnerability and recommends that users upgrade to groov View Server for Windows Version R4.5e and GRV-EPIC Firmware Version 4.0.3. Additional information is available from Opto 22 here. CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability, such as: Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the Internet. Locate control system networks and remote devices behind firewalls and isolating them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time. 5. UPDATE HISTORY November 25, 2025: Initial Publication