What is CVE-2020-7839?

CVE-2020-7839 is a high-severity vulnerability in Markany Maepsbroker, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2021-03-24.

How severe is CVE-2020-7839?

High severity. CVSS v3 base score is 8.8 out of 10.

Improper input validation in Markany Maepsbroker

CVE-2020-7839

In MaEPSBroker 2.5.0.31 and prior, a command injection vulnerability caused by improper input validation checks when parsing brokerCommand parameter.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2021-03-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.014 (71.7th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Markany Maepsbroker — versions 2.5.0.31

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

www.markany.com/ (Vendor Advisory)
www.krcert.or.kr/krcert/secNoticeView.do (Third Party Advisory)

Frequently asked questions

What is CVE-2020-7839?: CVE-2020-7839 is a high-severity vulnerability in Markany Maepsbroker, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2021-03-24.
How severe is CVE-2020-7839?: High severity. CVSS v3 base score is 8.8 out of 10.