CVE-2020-7566
HIGHModicon M221 Firmware - Small Space of Random Values in Encryption Key Generation
Title source: llmDescription
A CWE-334: Small Space of Random Values vulnerability exists in Modicon M221 (all references, all versions) that could allow the attacker to break the encryption keys when the attacker has captured the traffic between EcoStruxure Machine - Basic software and Modicon M221 controller.
References (2)
Core 2
Core References
Vendor Advisory x_refsource_misc
https://www.se.com/ww/en/download/document/SEVD-2020-315-05/
Third Party Advisory, US Government Resource x_refsource_misc
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-04
Scores
CVSS v3
7.3
EPSS
0.0004
EPSS Percentile
12.1%
Attack Vector
ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Details
CWE
CWE-334
Status
published
Products (1)
schneider-electric/modicon_m221_firmware
Published
Nov 19, 2020
Tracked Since
Feb 18, 2026