What is CVE-2020-18759?

CVE-2020-18759 is a high-severity vulnerability in Dcce Mac1100 Plc, classified under Cleartext Storage of Sensitive Information. CVSS score: 7.5/10. Published 2021-08-13.

How severe is CVE-2020-18759?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Dcce Mac1100 Plc

CVE-2020-18759

An information disclosure vulnerability exists in the EPA protocol of Dut Computer Control Engineering Co.'s PLC MAC1100.

Published 2021-08-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.008 (55.4th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.4% 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

Weakness classification (CWE)

CWE-312 — Cleartext Storage of Sensitive Information

References

github.com/Ni9htMar3/vulnerability/blob/master/PLC/DCCE/DCCE MAC1100 PLC_leak2… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-18759?: CVE-2020-18759 is a high-severity vulnerability in Dcce Mac1100 Plc, classified under Cleartext Storage of Sensitive Information. CVSS score: 7.5/10. Published 2021-08-13.
How severe is CVE-2020-18759?: High severity. CVSS v3 base score is 7.5 out of 10.