CVE-2021-22786

State: Published
Severity: 7.5 High
Published: Feb 1, 2023
Updated: Feb 5, 2025
Reserved: Jan 6, 2021

Description

A CWE-200: Information Exposure vulnerability exists that could cause the exposure of sensitive information stored on the memory of the controller when communicating over the Modbus TCP protocol. Affected Products: Modicon M340 CPU (part numbers BMXP34*) (Versions prior to V3.30), Modicon M580 CPU (part numbers BMEP* and BMEH*) (Versions prior to SV3.20), Modicon MC80 (BMKC80) (Versions prior to V1.6), Modicon M580 CPU Safety (part numbers BMEP58*S and BMEH58*S) (All Versions), Modicon Momentum MDI (171CBU*) (Versions prior to V2.3), Legacy Modicon Quantum (All Versions)

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N	schneider

Weaknesses

CWE-200 Information Exposure

Affected Products

Product	Versions
Modicon M340 CPU (part numbers BMXP34*)Schneider Electric	All to before V3.30Affected
Modicon M580 CPU (part numbers BMEP* and BMEH*)Schneider Electric	All to before V3.20Affected
Modicon M580 CPU Safety (part numbers BMEP58S and BMEH58S)Schneider Electric	All VersionsAffected
Modicon MC80 (BMKC80)Schneider Electric	All to before V1.6Affected
Modicon Momentum CPU (171CBU*)Schneider Electric	All to before V2.3Affected
Legacy Modicon QuantumSchneider Electric	All VersionsAffected

References

https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2022-221-04&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2022-221-04-Modicon_Controllers_Ethernet_Modules_Security_Notification.pdf

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