CVE-2026-82779 in CPS-TM341G5MB-ADSC1-931
Summary
by MITRE • 09/14/2026
Improper neutralization of special elements used in an OS command ('OS Command Injection') issue exists in CONPROSYS TM Series. If this vulnerability is exploited, an arbitrary OS command may be executed by an attacker who can log in to the product.
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Analysis
by VulDB Data Team • 09/14/2026
The identified vulnerability represents a classic instance of Improper Neutralization of Special Elements used in an Operating System Command, commonly referred to as OS Command Injection or CWE-78. This flaw resides within the CONPROSYS TM Series industrial control system software and stems from insufficient validation or sanitization of user-supplied input before it is passed to underlying operating system commands. When a developer constructs command strings by concatenating unsanitized user inputs directly into shell commands, they create an opening for malicious actors to inject additional OS-level instructions that the application did not intend to execute. This type of vulnerability typically arises from a failure to implement strict allow-listing strategies or proper escaping mechanisms for special characters such as semicolons, pipes, ampersands, and backticks, which are interpreted by the shell as command separators or logical operators rather than literal data values.
The operational impact of this vulnerability is severe due to the context in which it operates within industrial environments. Although exploitation requires an attacker to first authenticate to the product, the resulting capability allows for arbitrary OS command execution with the privileges associated with the application process. In many industrial control scenarios, these services run with elevated permissions or specific system-level access rights necessary for hardware communication and data logging. Consequently, successful exploitation can lead to a complete compromise of the host operating system, enabling attackers to install malware, exfiltrate sensitive operational technology data, modify configuration files that dictate machine behavior, or pivot further into the broader network infrastructure. This undermines the integrity and availability principles critical to industrial operations, potentially leading to physical disruptions in manufacturing processes or safety systems if the compromised system controls actuators or sensors directly.
From a threat modeling perspective aligned with industry standards such as MITRE ATT&CK, this vulnerability facilitates initial access followed by command-and-control activities and potential lateral movement within an OT network. The attack vector is classified as local because it requires prior authentication, which may limit its exploitability against remote attackers but significantly increases the risk from insider threats or compromised credentials obtained through phishing or other social engineering tactics. Defenders must recognize that even authenticated vulnerabilities in industrial software are critical due to the high value of operational continuity and safety associated with these systems. The presence of such a flaw indicates a gap in secure coding practices during the development lifecycle, specifically regarding input validation and command construction protocols.
Mitigation strategies should focus on both immediate remediation and long-term architectural improvements. The primary technical fix involves refactoring the affected code to eliminate direct OS command execution where possible, replacing it with safe API calls or library functions that do not invoke a shell interpreter. If external commands are strictly necessary for functionality, developers must implement rigorous input validation using strict allow-lists that define exactly which characters and formats are permissible. Additionally, all user inputs passed to system commands should be properly escaped or quoted according to the specific syntax requirements of the target operating system shell. Beyond code changes, organizations should enforce principle of least privilege by ensuring the application runs with minimal required permissions, thereby limiting the blast radius if an injection is successful. Regular security assessments and static analysis tools integrated into the CI/CD pipeline can help detect such patterns early in development before deployment to critical industrial environments.