CVE-2022-1667: Secheron SEPCOS Control and Protection Relay

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-06-24 · updated 2026-06-17
Weakness: CWE-841

Description

Client-side JavaScript controls may be bypassed by directly running a JS function to reboot the PLC (e.g., from the browser console) or by loading the corresponding, browser accessible PHP script

Affected products

Secheron SEPCOS Control and Protection Relay firmware package: from 1.23.0 before 1.23.21; from 1.24.0 before 1.24.8; from 1.25.0 before 1.25.3 — fixed in 1.23.21, 1.24.8, 1.25.3

How to fix

Upgrade to a fixed version: Secheron SEPCOS Control and Protection Relay firmware package 1.23.21, 1.24.8, 1.25.3. Check the vendor advisory for mitigations.

References

https://www.cisa.gov/uscert/ics/advisories/icsa-22-174-03
https://www.cisa.gov/uscert/ics/advisories/icsa-22-174-03

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