CVE-2018-7846

Public Exploit

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 38.19% Top 5%
Vendor Advisory schneider-electric.com
Affected: n/a Modicon M580 Modicon M340 Modicon Quantum Modicon Premium
Published at:
Updated at:

References

Link Tags
https://www.schneider-electric.com/en/download/document/SEVD-2019-134-11/ vendor advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0735 third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2018-7846?
CVE-2018-7846 has been scored as a critical severity vulnerability.
How to fix CVE-2018-7846?
To fix CVE-2018-7846, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-7846 being actively exploited in the wild?
It is possible that CVE-2018-7846 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~38% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-7846?
CVE-2018-7846 affects n/a Modicon M580 Modicon M340 Modicon Quantum Modicon Premium.
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