7.5
CWE
787
Advisory Published
Updated

CVE-2021-22788

First published: Fri Feb 11 2022(Updated: )

A CWE-787: Out-of-bounds Write vulnerability exists that could cause denial of service when an attacker sends a specially crafted HTTP request to the web server of the device. Affected Product: Modicon M340 CPUs: BMXP34 (Versions prior to V3.40), Modicon M340 X80 Ethernet Communication Modules: BMXNOE0100 (H), BMXNOE0110 (H), BMXNOC0401, BMXNOR0200H RTU (All Versions), Modicon Premium Processors with integrated Ethernet (Copro): TSXP574634, TSXP575634, TSXP576634 (All Versions), Modicon Quantum Processors with Integrated Ethernet (Copro): 140CPU65xxxxx (All Versions), Modicon Quantum Communication Modules: 140NOE771x1, 140NOC78x00, 140NOC77101 (All Versions), Modicon Premium Communication Modules: TSXETY4103, TSXETY5103 (All Versions)

Credit: cybersecurity@se.com cybersecurity@se.com

Affected SoftwareAffected VersionHow to fix
Schneider-electric Bmxp342020 Firmware<3.40
Schneider-electric Bmxp342020
Schneider-electric Bmxnoe0100 Firmware
Schneider-electric Bmxnoe0100
Schneider-electric Bmxnoe0110 Firmware
Schneider-electric Bmxnoe0110
Schneider-electric Bmxnoc0401 Firmware
Schneider-electric Bmxnoc0401
Schneider-electric Bmxnor0200h Rtu Firmware
Schneider-electric Bmxnor0200h Rtu
Schneider-electric Tsxp574634 Firmware
Schneider-electric Tsxp574634
Schneider-electric Tsxp575634 Firmware
Schneider-electric Tsxp575634
Schneider-electric Tsxp576634 Firmware
Schneider-electric Tsxp576634
Schneider-electric 140cpu65150 Firmware
Schneider-electric 140cpu65150
Schneider-electric 140noe771x1 Firmware
Schneider-electric 140noe771x1
Schneider-electric 140noc78x00 Firmware
Schneider-electric 140noc78x00
Schneider-electric 140noc77101 Firmware
Schneider-electric 140noc77101
Schneider-electric Tsxety4103 Firmware
Schneider-electric Tsxety4103
Schneider-electric Tsxety5103 Firmware
Schneider-electric Tsxety5103
All of
Schneider-electric Modicon M340 Bmxp342020 Firmware<3.40
Schneider-electric Modicon M340 Bmxp342020
All of
Schneider-electric Bmxnoe0100 Firmware
Schneider-electric Bmxnoe0100
All of
Schneider-electric Bmxnoe0110 Firmware
Schneider-electric Bmxnoe0110
All of
Schneider-electric Bmxnoc0401 Firmware
Schneider-electric Bmxnoc0401
All of
Schneider-electric Bmxnor0200h Rtu Firmware
Schneider-electric Bmxnor0200h Rtu
All of
Schneider-electric Tsxp574634 Firmware
Schneider-electric Tsxp574634
All of
Schneider-electric Tsxp575634 Firmware
Schneider-electric Tsxp575634
All of
Schneider-electric Tsxp576634 Firmware
Schneider-electric Tsxp576634
All of
Schneider-electric 140cpu65150 Firmware
Schneider-electric 140cpu65150
All of
Schneider-electric 140noe771x1 Firmware
Schneider-electric 140noe771x1
All of
Schneider-electric 140noc78x00 Firmware
Schneider-electric 140noc78x00
All of
Schneider-electric 140noc77101 Firmware
Schneider-electric 140noc77101
All of
Schneider-electric Tsxety4103 Firmware
Schneider-electric Tsxety4103
All of
Schneider-electric Tsxety5103 Firmware
Schneider-electric Tsxety5103

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Frequently Asked Questions

  • What is the vulnerability ID for this issue?

    The vulnerability ID for this issue is CVE-2021-22788.

  • What is the severity level of CVE-2021-22788?

    The severity level of CVE-2021-22788 is high.

  • What is the CWE ID for this vulnerability?

    The CWE ID for this vulnerability is CWE-787.

  • Which products are affected by CVE-2021-22788?

    The affected product is Modicon M340 CPUs: BMXP34 (Versions prior to V3.40), Modicon M340 X80 Ethernet Communication Modules: BMXN.

  • How can I fix CVE-2021-22788?

    To fix CVE-2021-22788, update your Modicon M340 CPUs to version V3.40 or newer.

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