What is CVE-2022-1666?

CVE-2022-1666 is a medium-severity vulnerability in Secheron Sepcos Control And Protection Relay, classified under Insufficiently Protected Credentials. CVSS score: 6.5/10. Published 2022-06-24.

How severe is CVE-2022-1666?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Secheron Sepcos Control And Protection Relay

CVE-2022-1666

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.

Published 2022-06-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.008 (55.4th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Secheron Sepcos Control And Protection Relay
Secheron Sepcos Control And Protection Relay Firmware
Secheron Sepcos Control And Protection Relay Firmware Package — versions All versions

Weakness classification (CWE)

CWE-522 — Insufficiently Protected Credentials

References

www.cisa.gov/uscert/ics/advisories/icsa-22-174-03 (US Government Resource, Third Party Advisory, Mitigation)

Frequently asked questions

What is CVE-2022-1666?: CVE-2022-1666 is a medium-severity vulnerability in Secheron Sepcos Control And Protection Relay, classified under Insufficiently Protected Credentials. CVSS score: 6.5/10. Published 2022-06-24.
How severe is CVE-2022-1666?: Medium severity. CVSS v3 base score is 6.5 out of 10.