VulnerabilityModified
CVE-2022-21155
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.
HIGH 7.5EPSS 1.12%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.12%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.12% probability · 64th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400, CWE-755
- Affected
- fernhillsoftware/scada server
- Source
- ics-cert@hq.dhs.gov
References
- https://www.cisa.gov/uscert/ics/advisories/icsa-22-006-02Mitigation, Third Party Advisory, US Government Resource
- https://www.cisa.gov/uscert/ics/advisories/icsa-22-006-02Mitigation, Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.