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    Dashboard / CVE / CVE-2021-22788

    CVE-2021-22788

    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)

    Published:Feb 11, 2022
    Last Modified:May 29, 2026
    EPS:Feb 11, 2022
    EPSS Score:0.01449
    CVSS Score:7.5

    Affected Products

    Vendor
    Schneider-electric
    Product
    140cpu65150
    Vendor
    Schneider-electric
    Product
    140cpu65150 Firmware
    Vendor
    Schneider-electric
    Product
    140noc77101
    Vendor
    Schneider-electric
    Product
    140noc77101 Firmware
    Vendor
    Schneider-electric
    Product
    140noc78x00
    Vendor
    Schneider-electric
    Product
    140noc78x00 Firmware
    Vendor
    Schneider-electric
    Product
    140noe771x1
    Vendor
    Schneider-electric
    Product
    140noe771x1 Firmware
    Vendor
    Schneider-electric
    Product
    Bmxnoc0401
    Vendor
    Schneider-electric
    Product
    Bmxnoc0401 Firmware
    Vendor
    Schneider-electric
    Product
    Bmxnoe0100
    Vendor
    Schneider-electric
    Product
    Bmxnoe0100 Firmware
    Vendor
    Schneider-electric
    Product
    Bmxnoe0110
    Vendor
    Schneider-electric
    Product
    Bmxnoe0110 Firmware
    Vendor
    Schneider-electric
    Product
    Bmxnor0200h Rtu
    Vendor
    Schneider-electric
    Product
    Bmxnor0200h Rtu Firmware
    Vendor
    Schneider-electric
    Product
    Modicon M340 Bmxp342020
    Vendor
    Schneider-electric
    Product
    Modicon M340 Bmxp342020 Firmware
    Vendor
    Schneider-electric
    Product
    Tsxety4103
    Vendor
    Schneider-electric
    Product
    Tsxety4103 Firmware
    Vendor
    Schneider-electric
    Product
    Tsxety5103
    Vendor
    Schneider-electric
    Product
    Tsxety5103 Firmware
    Vendor
    Schneider-electric
    Product
    Tsxp574634
    Vendor
    Schneider-electric
    Product
    Tsxp574634 Firmware
    Vendor
    Schneider-electric
    Product
    Tsxp575634
    Vendor
    Schneider-electric
    Product
    Tsxp575634 Firmware
    Vendor
    Schneider-electric
    Product
    Tsxp576634
    Vendor
    Schneider-electric
    Product
    Tsxp576634 Firmware

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2021-22787 (CVSS 7.5) — A CWE-20: Improper Input Validation vulnerability exists that could cause denial of service of the device when…
    CVE-2021-22785 (CVSS 7.5) — A CWE-200: Information Exposure vulnerability exists that could cause sensitive information of files located i…
    CVE-2020-7549 (CVSS 5.3) — A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in the Web Server on Modi…
    CVE-2020-7542 (CVSS 7.5) — A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Modicon M580, Modicon …
    CVE-2020-7541 (CVSS 5.3) — A CWE-425: Direct Request ('Forced Browsing') vulnerability exists in the Web Server on Modicon M340, Legacy O…
    CVE-2020-7540 (CVSS 9.8) — A CWE-306: Missing Authentication for Critical Function vulnerability exists in the Web Server on Modicon M340…
    CVE-2020-7539 (CVSS 7.5) — A CWE-754 Improper Check for Unusual or Exceptional Conditions vulnerability exists in the Web Server on Modic…
    CVE-2020-7535 (CVSS 7.5) — A CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal' Vulnerability Type) vu…
    CVE-2020-7477 (CVSS 7.5) — A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Quantum Ethernet Netwo…
    CVE-2018-7794 (CVSS 7.5) — A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Modicon M580, Modicon …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High