General Industrial Controls Lynx+ Gateway

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1. EXECUTIVE SUMMARY CVSS v4 9.2 ATTENTION: Exploitable remotely/low attack complexity Vendor: General Industrial Controls Equipment: Lynx+ Gateway Vulnerabilities: Weak Password Requirements, Missing Authentication for Critical Function, Cleartext Transmission of Sensitive Information
2. RISK EVALUATION Successful exploitation of these vulnerabilities could result in obtaining sensitive device information, unauthorized access, or create a denial-of-service condition.
3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following versions of Lynx+ Gateway are affected: Lynx+ Gateway: Version R08 Lynx+ Gateway: Version V03 Lynx+ Gateway: Version V05 Lynx+ Gateway: Version V18 3.2 VULNERABILITY OVERVIEW 3.2.1 WEAK PASSWORD REQUIREMENTS CWE-521 The affected product is vulnerable to a weak password requirement vulnerability, which may allow an attacker to execute a brute-force attack resulting in unauthorized access and login. CVE-2025-55034 has been assigned to this vulnerability. A CVSS v3 base score of 8.2 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N). A CVSS v4 score has also been calculated for CVE-2025-55034. A base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N). 3.2.2 MISSING AUTHENTICATION FOR CRITICAL FUNCTION CWE-306 The affected product is missing critical authentication in the embedded web server which could allow an attacker to remotely reset the device. CVE-2025-58083 has been assigned to this vulnerability. A CVSS v3 base score of 10.0 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H). A CVSS v4 score has also been calculated for CVE-2025-58083. A base score of 9.2 has been calculated; the CVSS vector string is (AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:H). 3.2.3 MISSING AUTHENTICATION FOR CRITICAL FUNCTION CWE-306 The affected product is missing critical authentication in the embedded web server which could allow an attacker to send GET requests to obtain sensitive device information. CVE-2025-59780 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N). A CVSS v4 score has also been calculated for CVE-2025-59780. A base score of 8.7 has been calculated; the CVSS vector string is (AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N). 3.2.4 CLEARTEXT TRANSMISSION OF SENSITIVE INFORMATION CWE-319 The affected product is vulnerable to a cleartext transmission vulnerability that could allow an attacker to observe network traffic to obtain sensitive information, including plaintext credentials. CVE-2025-62765 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N). A CVSS v4 score has also been calculated for CVE-2025-62765. A base score of 8.7 has been calculated; the CVSS vector string is (AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N). 3.3 BACKGROUND CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing COUNTRIES/AREAS DEPLOYED: Worldwide COMPANY HEADQUARTERS LOCATION: India 3.4 RESEARCHER Abhishek Pandey from Payatu Security Consulting Pvt. Ltd. reported these vulnerabilities to CISA.
4. MITIGATIONS General Industrial Controls (GIC) did not respond to CISA’s attempts to coordinate. Users of General Industrial Controls Lynx+ Gateway are encouraged to reach out to GIC for more information. CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities, 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 these vulnerabilities has been reported to CISA at this time.
5. UPDATE HISTORY November 13, 2025: Initial Publication