CVE-2021-38432

Name: CVE-2021-38432
Creator: NVD / NIST
Published: 2021-10-15T15:15:08.39+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.76%

Last modified Jun 17, 2026

CVE-2021-38432 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. FATEK Automation Communication Server Versions 1.13 and prior lacks proper validation of user-supplied data, which could result in a stack-based buffer overflow condition and allow an attacker to remotely execute code.. EPSS estimates a 1.76% chance of exploitation in the next 30 days.

Description

FATEK Automation Communication Server Versions 1.13 and prior lacks proper validation of user-supplied data, which could result in a stack-based buffer overflow condition and allow an attacker to remotely execute code.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.76%

75.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-121

Affected Software

Vendor	Product	Versions
Fatek	Communication Server Firmware	<= 1.13

References

https://us-cert.cisa.gov/ics/advisories/icsa-21-280-07Third Party Advisory, US Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-21-280-07Third Party Advisory, US Government Resource

Timeline

Published: Oct 15, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-38432?

How severe is CVE-2021-38432?

CVE-2021-38432 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.76% probability of exploitation in the next 30 days.

How do I fix CVE-2021-38432?

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-2021-38432?

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

Scan your code now

Source: NVD / NIST