CVE-2022-1666: Secheron SEPCOS Control and Protection Relay

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% 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-522

Description

The default password for the web application’s root user (the vendor’s private account) was weak and the MD5 hash was used to crack the password using a widely available open-source tool.

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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