CVE-2021-22786

Published Feb 1, 2023 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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)

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-9921 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)
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Subscriptions

Schneider-electric Modicon M340 Bmxp341000 Modicon M340 Bmxp341000 Firmware Modicon M340 Bmxp342000 Modicon M340 Bmxp342000 Firmware Modicon M340 Bmxp342010 Modicon M340 Bmxp3420102 Modicon M340 Bmxp3420102 Firmware Modicon M340 Bmxp342010 Firmware Modicon M340 Bmxp342020 Modicon M340 Bmxp342020 Firmware Modicon M340 Bmxp342020h Modicon M340 Bmxp342020h Firmware Modicon M340 Bmxp342030 Modicon M340 Bmxp3420302 Modicon M340 Bmxp3420302 Firmware Modicon M340 Bmxp3420302h Modicon M340 Bmxp3420302h Firmware Modicon M340 Bmxp342030 Firmware Modicon M340 Bmxp342030h Modicon M340 Bmxp342030h Firmware Modicon M580 Bmeh582040 Modicon M580 Bmeh582040 Firmware Modicon M580 Bmeh582040c Modicon M580 Bmeh582040c Firmware Modicon M580 Bmeh582040s Modicon M580 Bmeh582040s Firmware Modicon M580 Bmeh584040 Modicon M580 Bmeh584040 Firmware Modicon M580 Bmeh584040c Modicon M580 Bmeh584040c Firmware Modicon M580 Bmeh584040s Modicon M580 Bmeh584040s Firmware Modicon M580 Bmeh586040 Modicon M580 Bmeh586040 Firmware Modicon M580 Bmeh586040c Modicon M580 Bmeh586040c Firmware Modicon M580 Bmeh586040s Modicon M580 Bmeh586040s Firmware Modicon M580 Bmep581020 Modicon M580 Bmep581020 Firmware Modicon M580 Bmep581020h Modicon M580 Bmep581020h Firmware Modicon M580 Bmep582020 Modicon M580 Bmep582020 Firmware Modicon M580 Bmep582020h Modicon M580 Bmep582020h Firmware Modicon M580 Bmep582040 Modicon M580 Bmep582040 Firmware Modicon M580 Bmep582040h Modicon M580 Bmep582040h Firmware Modicon M580 Bmep582040s Modicon M580 Bmep582040s Firmware Modicon M580 Bmep583020 Modicon M580 Bmep583020 Firmware Modicon M580 Bmep583040 Modicon M580 Bmep583040 Firmware Modicon M580 Bmep584020 Modicon M580 Bmep584020 Firmware Modicon M580 Bmep584040 Modicon M580 Bmep584040 Firmware Modicon M580 Bmep584040s Modicon M580 Bmep584040s Firmware Modicon M580 Bmep585040 Modicon M580 Bmep585040 Firmware Modicon M580 Bmep585040c Modicon M580 Bmep585040c Firmware Modicon M580 Bmep586040 Modicon M580 Bmep586040 Firmware Modicon M580 Bmep586040c Modicon M580 Bmep586040c Firmware Modicon Mc80 Bmkc8020301 Modicon Mc80 Bmkc8020301 Firmware Modicon Mc80 Bmkc8020310 Modicon Mc80 Bmkc8020310 Firmware Modicon Mc80 Bmkc8030311 Modicon Mc80 Bmkc8030311 Firmware Modicon Momentum 171cbu78090 Modicon Momentum 171cbu78090 Firmware Modicon Momentum 171cbu98090 Modicon Momentum 171cbu98090 Firmware Modicon Momentum 171cbu98091 Modicon Momentum 171cbu98091 Firmware
Weaknesses

Sources

Status
PUBLISHED
Assigner
schneider
Published
Updated
Feb 5, 2025, 8:06 PM
Reserved
Jan 6, 2021, 12:00 AM
Status
Modified
Published
Feb 1, 2023, 4:15 AM
Modified
Jun 17, 2026, 3:37 AM