What is CVE-2018-19020?

CVE-2018-19020 is a medium-severity vulnerability in Ics-Cert Cx-Supervisor, classified under Out-of-bounds Read. CVSS score: 5.0/10. Published 2019-02-12.

How severe is CVE-2018-19020?

Medium severity. CVSS v3 base score is 5.0 out of 10.

Out-of-bounds Read in Ics-Cert Cx-Supervisor

CVE-2018-19020

When CX-Supervisor (Versions 3.42 and prior) processes project files and tampers with the value of an offset, an attacker can force the application to read a value outside of an array.

Vulnerability class: Buffer Overflow

Published 2019-02-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.008 (55.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 55.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Ics-Cert Cx-Supervisor — versions Versions 3.42 and prior
Omron Cx-Supervisor

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

ics-cert.us-cert.gov/advisories/ICSA-19-017-01 (US Government Resource, Third Party Advisory, Mitigation)

Frequently asked questions

What is CVE-2018-19020?: CVE-2018-19020 is a medium-severity vulnerability in Ics-Cert Cx-Supervisor, classified under Out-of-bounds Read. CVSS score: 5.0/10. Published 2019-02-12.
How severe is CVE-2018-19020?: Medium severity. CVSS v3 base score is 5.0 out of 10.