CVE-2021-22786

Summary

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 BMEP58S and BMEH58S) (All Versions), Modicon Momentum MDI (171CBU*) (Versions prior to V2.3), Legacy Modicon Quantum (All Versions)

Affected Software

VendorProductVersion RangeStatus
Schneider ElectricModicon M340 CPU (part numbers BMXP34*)All < V3.30affected
Schneider ElectricModicon M580 CPU (part numbers BMEP* and BMEH*)All < V3.20affected
Schneider ElectricModicon M580 CPU Safety (part numbers BMEP58S and BMEH58S)All Versionsaffected
Schneider ElectricModicon MC80 (BMKC80)All < V1.6affected
Schneider ElectricModicon Momentum CPU (171CBU*)All < V2.3affected
Schneider ElectricLegacy Modicon QuantumAll Versionsaffected

Weaknesses

  • CWE-200: CWE-200 Information Exposure

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References