CVE-2025-7774 is a high-severity vulnerability identified in the Rockwell Automation 5032-CFGB16M12P5DR, specifically in the 5032 16-point Digital Configurable module's embedded web server. The core issue stems from missing authentication controls on critical functions, classified under CWE-306 (Missing Authentication for Critical Function). This flaw allows an attacker who intercepts session credentials to reuse them within a narrow 3-minute timeout window to perform privileged actions without proper authorization. The vulnerability affects version 1.011 of the product and does not require any user interaction, privileges, or prior authentication to exploit, making it remotely exploitable over the network. The CVSS 4.0 base score of 8.8 reflects its high impact, with network attack vector, low attack complexity, and no required privileges or user interaction. The vulnerability impacts confidentiality, integrity, and availability, as unauthorized users can potentially manipulate or disrupt industrial control processes managed by the module. Although no known exploits are currently reported in the wild, the nature of the vulnerability and the critical role of the affected device in industrial automation environments make it a significant risk. The lack of patch links suggests that a fix may not yet be publicly available, emphasizing the need for immediate mitigation and monitoring.

For European organizations, especially those operating in industrial automation, manufacturing, and critical infrastructure sectors, this vulnerability poses a substantial risk. Rockwell Automation products are widely used in European industrial environments, including automotive, energy, and utilities sectors. Exploitation could lead to unauthorized control over industrial processes, potentially causing operational disruptions, safety hazards, and financial losses. Confidentiality breaches could expose sensitive operational data, while integrity violations might lead to incorrect process execution or sabotage. Availability impacts could result in downtime of critical systems, affecting supply chains and essential services. Given the increasing focus on industrial cybersecurity in Europe, including compliance with NIS2 Directive and other regulatory frameworks, this vulnerability could also lead to regulatory and reputational consequences if exploited.

1. Network Segmentation: Isolate the affected Rockwell Automation modules from general IT networks and restrict access to trusted industrial control system (ICS) management networks only. 2. Session Monitoring and Timeout Enforcement: Implement network monitoring to detect unusual session reuse patterns and enforce strict session timeout policies shorter than the vulnerable 3-minute window where possible. 3. Use of VPNs and Encrypted Channels: Ensure all remote access to the device’s web server is conducted over secure VPNs or encrypted tunnels to prevent session credential interception. 4. Access Control Hardening: Employ additional authentication layers at network perimeter devices or proxy servers to compensate for the missing authentication on the device itself. 5. Firmware Updates and Vendor Coordination: Engage with Rockwell Automation for any forthcoming patches or firmware updates addressing this issue and plan timely deployment. 6. Incident Response Preparedness: Develop and test incident response plans specific to ICS environments to quickly detect and respond to potential exploitation attempts. 7. Physical Security: Enhance physical security controls to prevent unauthorized local access to the devices, which could facilitate credential interception or exploitation.