# CVE-2020-28214

## Summary

- **CVE ID:** CVE-2020-28214
- **Severity:** CRITICAL
- **CVSS Score:** 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** CWE-760
- **Published:** Dec 11, 2020
- **Last Modified:** May 28, 2026

## Description

A CWE-760: Use of a One-Way Hash with a Predictable Salt vulnerability exists in Modicon M221 (all references, all versions), that could allow an attacker to pre-compute the hash value using dictionary attack technique such as rainbow tables, effectively disabling the protection that an unpredictable salt would provide.

## Affected Products

- n/a — Modicon M221 (all references, all versions) (Modicon M221 (all references, all versions))

## References

- [CNA](https://www.se.com/ww/en/download/document/SEVD-2020-315-05/)
- [CNA](https://us-cert.cisa.gov/ics/advisories/icsa-20-343-04)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.09%
- **EPSS Percentile:** 25.3

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._