CVE-2025-62765 is a vulnerability classified under CWE-319 (Cleartext Transmission of Sensitive Information) affecting the General Industrial Controls Lynx+ Gateway, specifically versions R08, V03, V05, and V18. The vulnerability arises because the device transmits sensitive information, including plaintext credentials, over the network without encryption. This allows a remote attacker with network access to eavesdrop on communications and capture sensitive data, potentially leading to unauthorized access or further exploitation. The vulnerability has a CVSS 3.1 base score of 7.5, indicating high severity, with an attack vector of network (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N), unchanged scope (S:U), high confidentiality impact (C:H), and no impact on integrity (I:N) or availability (A:N). The flaw does not require authentication or user interaction, making it easier to exploit if an attacker can access the network segment where the Lynx+ Gateway operates. Although no public exploits are currently known, the vulnerability poses a significant risk to industrial control systems that rely on this gateway for communications. The lack of encryption in data transmission violates best practices for securing industrial control systems and could lead to credential theft and subsequent unauthorized access to critical infrastructure components. The vulnerability was published on November 14, 2025, and is tracked by ICS-CERT, emphasizing its relevance to industrial cybersecurity. No patches or fixes have been linked yet, highlighting the urgency for affected organizations to implement compensating controls.

For European organizations, especially those operating critical infrastructure and industrial control systems, this vulnerability presents a serious confidentiality risk. The interception of plaintext credentials can lead to unauthorized access to industrial gateways, potentially allowing attackers to move laterally within networks or disrupt operational technology environments. While the vulnerability does not directly affect system integrity or availability, the compromise of credentials can facilitate further attacks that may impact these aspects. European industries such as manufacturing, energy, utilities, and transportation that deploy General Industrial Controls Lynx+ Gateway are at risk. The exposure of sensitive operational data could also lead to regulatory compliance issues under GDPR and other data protection laws, resulting in legal and financial consequences. Additionally, the vulnerability could be exploited for espionage or sabotage, given the strategic importance of industrial control systems in Europe. The absence of known exploits in the wild currently reduces immediate risk but does not diminish the potential impact if exploited.

1. Immediately assess and inventory all Lynx+ Gateway devices running affected versions (R08, V03, V05, V18) within the network. 2. Implement network segmentation to isolate industrial control systems and restrict access to the Lynx+ Gateway to trusted management networks only. 3. Deploy encrypted communication protocols such as VPNs or TLS tunnels around the Lynx+ Gateway to protect data in transit until official patches are available. 4. Monitor network traffic for signs of unauthorized sniffing or unusual access patterns targeting the gateway. 5. Enforce strict access controls and multi-factor authentication on management interfaces to reduce the risk of credential compromise. 6. Engage with General Industrial Controls for updates or patches and apply them promptly once released. 7. Conduct regular security audits and penetration testing focused on industrial control system communications. 8. Train operational technology personnel on the risks of cleartext transmissions and the importance of secure network configurations. 9. Consider deploying intrusion detection/prevention systems (IDS/IPS) tailored for industrial protocols to detect exploitation attempts. 10. Document and prepare incident response plans specific to industrial control system breaches involving credential exposure.