CVE-2021-38432

9.8 criticalEPSS 1.9%

Critical (9.8) in fatek communication server firmware. EPSS 1.9% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.8 critical

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

EPSS: 1.9% chance of exploitation in the next 30 days; higher than 79% of CVEs (scores of 2026-10-31)
CWE: CWE-121
Published: 2021-10-15
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

fatek:communication_server_firmware

References

https://us-cert.cisa.gov/ics/advisories/icsa-21-280-07
https://us-cert.cisa.gov/ics/advisories/icsa-21-280-07

Check your stack JSON