What is CVE-2021-38430?

CVE-2021-38430 is a high-severity vulnerability in Fatek Winproladder, classified under Stack-based Buffer Overflow. CVSS score: 7.8/10. Published 2021-10-18.

How severe is CVE-2021-38430?

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

Buffer overflow in Fatek Winproladder

CVE-2021-38430

FATEK Automation WinProladder versions 3.30 and prior proper validation of user-supplied data when parsing project files, which could result in a stack-based buffer overflow. An attacker could leverage this vulnerability to execute arbitrary code.

Vulnerability class: Buffer Overflow

Published 2021-10-18 · 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: 0.010 (62.5th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Fatek Winproladder
Fatek Automation Winproladder — versions All

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

References

us-cert.cisa.gov/ics/advisories/icsa-21-280-06 (US Government Resource, Third Party Advisory)

Frequently asked questions

What is CVE-2021-38430?: CVE-2021-38430 is a high-severity vulnerability in Fatek Winproladder, classified under Stack-based Buffer Overflow. CVSS score: 7.8/10. Published 2021-10-18.
How severe is CVE-2021-38430?: High severity. CVSS v3 base score is 7.8 out of 10.