CVE-2018-7846
Last modified
CVE-2018-7846 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A CWE-501: Trust Boundary Violation vulnerability on connection to the Controller exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum and Modicon Premium which could cause unauthorized access by conducting a brute force attack on Modbus protocol to the controller.. EPSS estimates a 29.58% chance of exploitation in the next 30 days.
Description
A CWE-501: Trust Boundary Violation vulnerability on connection to the Controller exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum and Modicon Premium which could cause unauthorized access by conducting a brute force attack on Modbus protocol to the controller.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Schneider-Electric | Modicon M580 Firmware | All versions |
| Schneider-Electric | Modicon M340 Firmware | All versions |
| Schneider-Electric | Modicon Quantum Firmware | All versions |
| Schneider-Electric | Modicon Premium Firmware | All versions |
References
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0735Exploit, Third Party Advisory
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0735Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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