Skip to main content
HIGH

CVE-2018-7854

CVSS v3

7.5

HIGH

EPSS Score

2.3 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Get an alert for each new CVE published for the software you run.

Set up CVE WatchFree account · no credit card

Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • ICSA-25-114-01 CISA2 products fixed · 2 known affected

    Schneider Electric Modicon Controllers (Update A)

    Modicon M580 Firmware Versions prior to v2.90 installed on Modicon M580 Controller · Modicon M340 Firmware Versions prior to v3.10 installed on Modicon M340 Controller

Full record on NVD

Description

A CWE-248 Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause a denial of Service when sending invalid debug parameters to the controller over Modbus.

Technical details

Published
2019-05-22

Frequently asked questions

What is CVE-2018-7854?

A CWE-248 Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause a denial of Service when sending invalid debug parameters to the controller over Modbus.

Is CVE-2018-7854 actively exploited?

Active exploitation of CVE-2018-7854 has not been confirmed. Its EPSS score was 2.3% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-7854?

CVE-2018-7854 has a CVSS v3 base score of 7.5 (HIGH severity).

Hear about the next vulnerability in your software

CVE Watch matches each new CVE to the vendors and products you list (vendor and product, not the version) and puts it in your alerts with its KEV and EPSS status.

Already have an account? Open CVE WatchNo credit card required · No monthly cap on website lookups · 250 API requests/month