CVE-2022-21155

HIGH 7.5CVE-2022-21155 · Published 12/04/2022 · updated 17/06/2026

In short

CVE-2022-21155 is a HIGH (CVSS 7.5) vulnerability affecting scada server (fernhillsoftware).
Chance of exploitation in the next 30 days (EPSS): 1.1%, higher than 66.4% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
scada server fernhillsoftware	`≤ 3.77`	No fix yet

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

cisa.gov/uscert/ics/advisories/icsa-22-006-02 · Mitigation

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