Vulnerability in Schneider-Electric Modicon 140cra

CVE-2019-6842

A CWE-755: Improper Handling of Exceptional Conditions vulnerability exists in Modicon M580, Modicon M340, Modicon BMxCRA and 140CRA modules (all firmware versions), which could cause a Denial of Service attack on the PLC when upgrading the firmware with a missing web server image inside the package using FTP protocol.

EPSS: 0.010 (57.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2019-6842?
CVE-2019-6842 is a medium-severity vulnerability in Schneider-Electric Modicon 140cra, classified under Improper Handling of Exceptional Conditions. CVSS score: 4.9/10. Published 2019-10-29.
How severe is CVE-2019-6842?
Medium severity. CVSS v3 base score is 4.9 out of 10.