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Summary
Successful exploitation of this vulnerability could allow an attacker obtain plaintext credentials from the project file for GT Designer3, which could result in illegally operating GOT2000 and GOT1000 series devices.
The following versions of Mitsubishi Electric GT Designer3 are affected:
- GT Designer3 Version1 (GOT2000) (CVE-2025-11009)
- GT Designer3 Version1 (GOT1000) (CVE-2025-11009)
| CVSS | Vendor | Equipment | Vulnerabilities |
|---|---|---|---|
| v3 5.1 | Mitsubishi Electric | Mitsubishi Electric GT Designer3 | Cleartext Storage of Sensitive Information |
Background
- Critical Infrastructure Sectors: Critical Manufacturing
- Countries/Areas Deployed: Worldwide
- Company Headquarters Location: Japan
Vulnerabilities
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CVE-2025-11009
Information Disclosure vulnerability due to Cleartext Storage of Sensitive Information(CWE-312) exists in GT Designer3. GT Designer3 stores credentials and verifies them in plain text, therefore an attacker may be able to obtain plaintext credentials from the project file for GT Designer3. As a result, the attacker may be able to operate illegally GOT2000 series or GOT1000 series by using the obtained credentials.
View CVE Details
Affected Products
Mitsubishi Electric GT Designer3
Mitsubishi Electric
Mitsubishi Electric GT Designer3 Version1 (GOT2000): vers:all/*, Mitsubishi Electric GT Designer3 Version1 (GOT1000): vers:all/*
known_affected
Remediations
Mitigation
Mitsubishi Electric recommends that users take the following mitigation measures to minimize the risk of exploiting this vulnerability:
Mitigation
Use a personal computer with the affected product within the LAN and block remote login from untrusted networks, hosts, and users.
Mitigation
When connecting a personal computer with the affected product to the Internet, use a firewall, virtual private network (VPN), etc., to prevent unauthorized access and allow only trusted users to remote login.
Mitigation
Install an antivirus software on the computer using the affected product.
Mitigation
Don’t open untrusted files or click untrusted links.
Mitigation
For more information, see Mitsubishi Electric’s security advisory.
Relevant CWE: CWE-312 Cleartext Storage of Sensitive Information
Metrics
| CVSS Version | Base Score | Base Severity | Vector String |
|---|---|---|---|
| 3.1 | 5.1 | MEDIUM | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
Acknowledgments
- Hea-Eun Moon and Junbeom Gwak of Red Alert Lab at NSHC reported this vulnerability to Mitsubishi Electric
Legal Notice and Terms of Use
This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy).
Recommended Practices
CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability, such as:
Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.
Locate control system networks and remote devices behind firewalls and isolating them from business networks.
When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time. This vulnerability is not exploitable remotely. This vulnerability has a high attack complexity.
Revision History
- Initial Release Date: 2025-12-16
| Date | Revision | Summary |
|---|---|---|
| 2025-12-16 | 1 | Initial Republication |