Critical Password Hash Vulnerability Exposes Rockwell Automation Fleet Management Systems
Rockwell Automation's OTTO Fleet Manager versions 2.36.2 and earlier contain a critical vulnerability (CVE-2026-75112) involving insufficient computational effort in bcrypt password hashing implementation. This weakness reduces the computational cost for attackers to perform offline brute-force attacks against stored password hashes if they gain access to unencrypted system backups. The vulnerability affects industrial fleet management systems used worldwide in critical manufacturing and transportation sectors, with Rockwell Automation releasing version 2.36.3 to address the issue. This incident highlights the growing threat to industrial control systems and the critical importance of proper cryptographic implementations in operational technology environments, particularly as threat actors increasingly target industrial infrastructure with sophisticated attack techniques.
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