CVE-2025-14774 in T-MAC Plus
Summary
by MITRE • 06/03/2026
Incorrect Authorization vulnerability in ABB T-MAC Plus.
This issue affects T-MAC Plus: 4.0-24.
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Analysis
by VulDB Data Team • 06/04/2026
The incorrect authorization vulnerability in ABB T-MAC Plus represents a critical security flaw that undermines the integrity of access controls within the industrial automation system. This vulnerability specifically impacts version 4.0-24 of the T-MAC Plus software, which is designed for industrial communication and network management in manufacturing environments. The flaw allows unauthorized users to bypass legitimate authentication mechanisms and gain access to restricted system functions, potentially compromising the entire industrial control infrastructure.
This technical vulnerability stems from improper validation of user permissions and access rights within the software's authorization framework. The flaw enables attackers to exploit weaknesses in the access control implementation by manipulating authentication tokens or by leveraging insufficient validation checks during user session establishment. According to CWE classification, this corresponds to CWE-285, which addresses improper authorization issues in software systems. The vulnerability creates a path for privilege escalation attacks where unauthenticated or low-privileged users can access administrative functions and sensitive system configurations.
The operational impact of this vulnerability extends beyond simple unauthorized access to encompass potential disruption of critical manufacturing processes and compromise of industrial control systems. Attackers could manipulate production parameters, access confidential operational data, or even cause physical damage to equipment through unauthorized control commands. The vulnerability affects industrial environments where T-MAC Plus is deployed for network management and communication protocols, making it particularly dangerous in sectors such as oil and gas, power generation, and manufacturing. The implications align with ATT&CK technique T1078 which covers valid accounts and privilege escalation in enterprise environments.
Mitigation strategies for this vulnerability require immediate implementation of security patches provided by ABB, along with comprehensive access control reviews and network segmentation measures. Organizations should implement strict monitoring of system access logs to detect anomalous authentication patterns and establish robust privilege management policies. Network administrators must ensure that only authorized personnel have access to critical system functions and that proper audit trails are maintained for all administrative activities. Additionally, regular security assessments and vulnerability scanning should be conducted to identify similar authorization flaws in related industrial control systems. The vulnerability underscores the importance of secure coding practices and proper authorization validation in industrial automation software, particularly in environments where cybersecurity is paramount to operational continuity and safety.