CVE-2022-21155

HIGH

Fernhill SCADA Server < 3.77 - Denial of Service via Crafted Packet

Title source: llm

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.

References (1)

Core 1

Core References

Mitigation, Third Party Advisory, US Government Resource x_refsource_misc

https://www.cisa.gov/uscert/ics/advisories/icsa-22-006-02

Scores

CVSS v3 7.5

EPSS 0.0105

EPSS Percentile 59.6%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-755 CWE-400

Status published

Products (1)

fernhillsoftware/scada_server < 3.77

Published Apr 12, 2022

Tracked Since Feb 18, 2026