Summary
Successful exploitation of this vulnerability could allow an attacker to elevate privileges from user to system, which may then enable the attacker to cause a temporary denial of service, open files, or delete files.
The following versions of Fuji Electric Tellus are affected:
- Tellus 5.0.2
| CVSS | Vendor | Equipment | Vulnerabilities |
|---|---|---|---|
| v3 7.8 | Fuji Electric | Fuji Electric Tellus | Exposed Dangerous Method or Function |
Background
- Critical Infrastructure Sectors: Critical Manufacturing
- Countries/Areas Deployed: Worldwide
- Company Headquarters Location: Japan
Vulnerabilities
CVE-2026-8108
The installation of Fuji Tellus adds a driver to the kernel which grants all users read and write permissions.
Affected Products
Fuji Electric Tellus
Fuji Electric
Fuji Electric Tellus: 5.0.2
known_affected
Remediations
Vendor fix
Fuji Electric recommends that Tellus be installed only with administrator privileges.
Relevant CWE: CWE-749 Exposed Dangerous Method or Function
Metrics
| CVSS Version | Base Score | Base Severity | Vector String |
|---|---|---|---|
| 3.1 | 7.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Acknowledgments
- Kim Myung-gyu of Trend Micro Zero Day Initiative reported this vulnerability to CISA
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. 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.
CISA also recommends users take the following measures to protect themselves from social engineering attacks:
Do not click web links or open attachments in unsolicited email messages.
Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.
No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time. This vulnerability is not exploitable remotely.
Revision History
- Initial Release Date: 2026-05-12
| Date | Revision | Summary |
|---|---|---|
| 2026-05-12 | 1 | Initial Publication |