CVE-2022-21155

7.5 highEPSS 1.1%

High (7.5) in fernhillsoftware scada server. EPSS 1.1% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.5 high

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

EPSS: 1.1% chance of exploitation in the next 30 days; higher than 66% of CVEs (scores of 2026-10-31)
CWEs: CWE-755, CWE-400
Published: 2022-04-12
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

fernhillsoftware:scada_server

References

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

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