What is CVE-2021-38440?

CVE-2021-38440 is a low-severity vulnerability in Fatek Winproladder, classified under Out-of-bounds Read. CVSS score: 3.3/10. Published 2021-10-18.

How severe is CVE-2021-38440?

Low severity. CVSS v3 base score is 3.3 out of 10.

Out-of-bounds Read in Fatek Winproladder

CVE-2021-38440

FATEK Automation WinProladder versions 3.30 and prior is vulnerable to an out-of-bounds read, which may allow an attacker to read unauthorized information.

Vulnerability class: Buffer Overflow

Published 2021-10-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.006 (46.9th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 46.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Fatek Winproladder
Fatek Automation Winproladder — versions All

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

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

Frequently asked questions

What is CVE-2021-38440?: CVE-2021-38440 is a low-severity vulnerability in Fatek Winproladder, classified under Out-of-bounds Read. CVSS score: 3.3/10. Published 2021-10-18.
How severe is CVE-2021-38440?: Low severity. CVSS v3 base score is 3.3 out of 10.