What is CVE-2021-38438?

CVE-2021-38438 is a high-severity vulnerability in Fatek Winproladder, classified under Use After Free. CVSS score: 7.8/10. Published 2021-10-18.

How severe is CVE-2021-38438?

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

Use After Free in Fatek Winproladder

CVE-2021-38438

A use after free vulnerability in FATEK Automation WinProladder versions 3.30 and prior may be exploited when a valid user opens a malformed project file, which may allow arbitrary code execution.

Vulnerability class: Use-After-Free

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 (62.0th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.0% 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-416 — Use After Free

References

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

Frequently asked questions

What is CVE-2021-38438?: CVE-2021-38438 is a high-severity vulnerability in Fatek Winproladder, classified under Use After Free. CVSS score: 7.8/10. Published 2021-10-18.
How severe is CVE-2021-38438?: High severity. CVSS v3 base score is 7.8 out of 10.