CWE
125
Advisory Published
Updated

CVE-2021-22790

First published: Thu Sep 02 2021(Updated: )

A CWE-125: Out-of-bounds Read vulnerability that could cause a Denial of Service on the Modicon PLC controller / simulator when updating the controller application with a specially crafted project file exists in Modicon M580 CPU (part numbers BMEP* and BMEH*, all versions), Modicon M340 CPU (part numbers BMXP34*, all versions), Modicon MC80 (part numbers BMKC80*, all versions), Modicon Momentum Ethernet CPU (part numbers 171CBU*, all versions), PLC Simulator for EcoStruxureª Control Expert, including all Unity Pro versions (former name of EcoStruxureª Control Expert, all versions), PLC Simulator for EcoStruxureª Process Expert including all HDCS versions (former name of EcoStruxureª Process Expert, all versions), Modicon Quantum CPU (part numbers 140CPU*, all versions), Modicon Premium CPU (part numbers TSXP5*, all versions).

Credit: cybersecurity@se.com

Affected SoftwareAffected VersionHow to fix
Schneider-electric Modicon M340 Bmxp341000
Schneider-electric Modicon M340 Bmxp342010
Schneider-electric Modicon M340 Bmxp342020
Schneider-electric Modicon M340 Bmxp342030
Schneider-electric Modicon M580 Bmeh582040
Schneider-electric Modicon M580 Bmeh582040c
Schneider-electric Modicon M580 Bmeh582040s
Schneider-electric Modicon M580 Bmeh584040
Schneider-electric Modicon M580 Bmeh584040c
Schneider-electric Modicon M580 Bmeh584040s
Schneider-electric Modicon M580 Bmeh586040
Schneider-electric Modicon M580 Bmeh586040c
Schneider-electric Modicon M580 Bmeh586040s
Schneider-electric Modicon M580 Bmep581020
Schneider-electric Modicon M580 Bmep581020h
Schneider-electric Modicon M580 Bmep582020
Schneider-electric Modicon M580 Bmep582020h
Schneider-electric Modicon M580 Bmep582040
Schneider-electric Modicon M580 Bmep582040h
Schneider-electric Modicon M580 Bmep582040s
Schneider-electric Modicon M580 Bmep583020
Schneider-electric Modicon M580 Bmep583040
Schneider-electric Modicon M580 Bmep584020
Schneider-electric Modicon M580 Bmep584040
Schneider-electric Modicon M580 Bmep584040s
Schneider-electric Modicon M580 Bmep585040
Schneider-electric Modicon M580 Bmep585040c
Schneider-electric Modicon M580 Bmep586040
Schneider-electric Modicon M580 Bmep586040c
Schneider-electric Modicon Mc80 Bmkc8020301
Schneider-electric Modicon Mc80 Bmkc8020310
Schneider-electric Modicon Mc80 Bmkc8030311
Schneider-electric Modicon Momentum 171cbu78090
Schneider-electric Modicon Momentum 171cbu98090
Schneider-electric Modicon Momentum 171cbu98091
Schneider-electric Modicon Premium Tsxp57 1634m
Schneider-electric Modicon Premium Tsxp57 2634m
Schneider-electric Modicon Premium Tsxp57 2834m
Schneider-electric Modicon Premium Tsxp57 454m
Schneider-electric Modicon Premium Tsxp57 4634m
Schneider-electric Modicon Premium Tsxp57 554m
Schneider-electric Modicon Premium Tsxp57 5634m
Schneider-electric Modicon Premium Tsxp57 6634m
Schneider-electric Modicon Quantum 140cpu65150
Schneider-electric Modicon Quantum 140cpu65150c
Schneider-electric Modicon Quantum 140cpu65160
Schneider-electric Modicon Quantum 140cpu65160c
Schneider-electric Plc Simulator For Ecostruxure Control Expert
Schneider-electric Plc Simulator For Ecostruxure Process Expert

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Frequently Asked Questions

  • What is the vulnerability ID of this issue?

    The vulnerability ID is CVE-2021-22790.

  • What is the severity level of CVE-2021-22790?

    The severity level of CVE-2021-22790 is medium, with a score of 6.5.

  • What is the affected software of CVE-2021-22790?

    The affected software of CVE-2021-22790 includes Schneider-electric Modicon M340 Bmxp341000, Modicon M340 Bmxp342010, Modicon M340 Bmxp342020, Modicon M340 Bmxp342030, Modicon M580 Bmeh582040, and more.

  • How does CVE-2021-22790 impact the Modicon PLC controller / simulator?

    CVE-2021-22790 is an out-of-bounds read vulnerability that could cause a Denial of Service on the Modicon PLC controller / simulator when updating the controller application with a specially crafted project file.

  • How can I fix CVE-2021-22790?

    To fix CVE-2021-22790, it is recommended to apply the necessary patches and updates provided by Schneider Electric and follow their recommended security guidelines.

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