CVE-2020-7565
HIGHModicon M221 Firmware - Inadequate Encryption Strength
Title source: llmDescription
A CWE-326: Inadequate Encryption Strength vulnerability exists in Modicon M221 (all references, all versions) that could allow the attacker to break the encryption key 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
0.0029
EPSS Percentile
20.4%
Attack Vector
ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-326
Status
published
Products (2)
None/Modicon M221, all references, all versions
Modicon M221, all references, all versions
schneider-electric/modicon_m221_firmware
Published
Nov 19, 2020
Tracked Since
Feb 18, 2026