Rockwell Automation OTTO Fleet Manager

August 27, 2026·Source: CISA

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TL;DR

View CSAF Summary Successful exploitation of this vulnerability could reduce the computational cost required for an attacker to perform offline brute-force attacks against stored password hashes. The following versions of Rockwell Automation OTTO Fleet Manager are affected: OTTO Fleet Manager <=V2.36.2 (CVE-2026-75112) CVSS Vendor Equipment Vulnerabilities

v3 6.8 Rockwell Automation Rockwell Automation OTTO Fleet Manager Use of Password Hash With Insufficient Computational Effort

Background Critical Infrastructure Sectors: Critical Manufacturing, Transportation Systems Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-75112 A security issue exists within OTTO Fleet Manager. The vulnerability stems from the use of an insufficient work factor in the bcrypt password hashing implementation, which could reduce the computational cost required for an attacker to perform offline brute-force attacks against stored password hashes. If an attacker gains access to an unencrypted system backup, the weakly hashed credentials could be more easily compromised. View CVE Details Affected Products Rockwell Automation OTTO Fleet Manager Vendor: Rockwell Automation Product Version: Rockwell Automation OTTO Fleet Manager: <=V2.36.2 Product Status: known_affected Remediations Mitigation Rockwell Automation has addressed this vulnerability in software version 2.36.3. https://file-share.ottomotors.com/login Mitigation Users of the affected software who are not able to upgrade to the corrected version or apply the mitigations should use Rockwell Automation's security best practices. https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight Vendor fix See Rockwell Automation security advisory SD1791 for more information about this issue and instructions to enable encrypted system backup in OTTO Fleet Manager. https://www.rockwellautomation.com/en-us/trust-center/security-adviso

What Happened

Rockwell Automation OTTO Fleet Manager, reported by CISA.

v3 6.8 Rockwell Automation Rockwell Automation OTTO Fleet Manager Use of Password Hash With Insufficient Computational Effort

For the full technical details, see the original report.

Why It Matters for Businesses

This development could affect organizations that rely on the impacted technologies or services. Unpatched systems, misconfigured infrastructure, or lack of monitoring can leave businesses exposed to exploitation, data breaches, and regulatory penalties.

How to Check Your Exposure

Run a free scan on NEL Professional's Cyber Risk Scanner to check whether your domain is affected. The scan covers SSL/TLS, security headers, DNS configuration, email authentication, and more across 16 modules.

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Mitigation Steps

Patch immediately, Apply vendor patches or updates as soon as they are available.
Review configurations, Check firewall rules, access controls, and security headers.
Monitor logs, Watch for indicators of compromise (IOCs) related to this threat.
Update security policies, Ensure incident response plans cover this type of threat.
Run a security scan, Use automated tools to verify your exposure.

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