VULNERABILITY INTELLIGENCE

CVE-2022-21155

CVSS score7.5 HIGH

EPSS probability1.12%

CISA KEVNot currently listed

Published2022-04-12

Last modified2026-06-17

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

Description

A specially crafted packet sent to the Fernhill SCADA Server Version 3.77 and earlier may cause an exception, causing the server process (FHSvrService.exe) to exit.

Weakness classification

CWE-400: Uncontrolled Resource Consumption
CWE-755: Improper Handling of Exceptional Conditions

Primary references

ics-cert@hq.dhs.gov — Mitigation, Third Party Advisory, US Government Resource
af854a3a-2127-422b-91ae-364da2661108 — Mitigation, Third Party Advisory, US Government Resource