CVE-2020-7567

5.7 mediumEPSS 0.2%

Medium (5.7) in schneider-electric modicon m221 firmware. EPSS 0.2% chance of exploitation in the next 30 days.

A CWE-311: Missing Encryption of Sensitive Data vulnerability exists in Modicon M221 (all references, all versions) that could allow the attacker to find the password hash when the attacker has captured the traffic between EcoStruxure Machine - Basic software and Modicon M221 controller and broke the encryption keys.

Severity

CVSS 3.1

5.7 medium

CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 10% of CVEs (scores of 2026-10-31)
CWE: CWE-311
Published: 2020-11-19
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

schneider-electric:modicon_m221_firmware

References

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

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