What is CVE-2020-16234?

CVE-2020-16234 is a high-severity vulnerability in Fatek Winproladder, classified under Stack-based Buffer Overflow. CVSS score: 7.8/10. Published 2020-09-30.

How severe is CVE-2020-16234?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Fatek Winproladder

CVE-2020-16234

In PLC WinProladder Version 3.28 and prior, a stack-based buffer overflow vulnerability can be exploited when a valid user opens a specially crafted file, which may allow an attacker to remotely execute arbitrary code.

Vulnerability class: Buffer Overflow

Published 2020-09-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.013 (69.3th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Fatek Winproladder
Fatek Automation Plc Winproladder — versions unspecified

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

References

us-cert.cisa.gov/ics/advisories/icsa-20-254-02 (US Government Resource, Third Party Advisory, Mitigation)

Frequently asked questions

What is CVE-2020-16234?: CVE-2020-16234 is a high-severity vulnerability in Fatek Winproladder, classified under Stack-based Buffer Overflow. CVSS score: 7.8/10. Published 2020-09-30.
How severe is CVE-2020-16234?: High severity. CVSS v3 base score is 7.8 out of 10.