CVE-2020-16234

Name: CVE-2020-16234
Creator: NVD / NIST
Published: 2020-09-30T21:15:12.887+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 1.30%

Last modified Jun 17, 2026

CVE-2020-16234 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 1.30% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

1.30%

66.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-121

Affected Software

Vendor	Product	Versions
Fatek	Winproladder	<= 3.28

References

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

Timeline

Published: Sep 30, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-16234?

How severe is CVE-2020-16234?

CVE-2020-16234 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.30% probability of exploitation in the next 30 days.

How do I fix CVE-2020-16234?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-16234?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST