CVE Feed

    Dashboard / CVE / CVE-2021-22791

    CVE-2021-22791

    A CWE-787: Out-of-bounds Write 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).

    Published:Sep 2, 2021
    Last Modified:Nov 21, 2024
    EPS:Sep 2, 2021
    EPSS Score:0.00437
    CVSS Score:6.5

    Affected Products

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

    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-2024-8935 (CVSS 7.7) — CWE-290: Authentication Bypass by Spoofing vulnerability exists that could cause a denial of service and loss …
    CVE-2023-6408 (CVSS 8.1) — CWE-924: Improper Enforcement of Message Integrity During Transmission in a Communication Channel vulnerabili…
    CVE-2021-22786 (CVSS 7.5) — A CWE-200: Information Exposure vulnerability exists that could cause the exposure of sensitive information st…
    CVE-2022-45789 (CVSS 8.1) — A CWE-294: Authentication Bypass by Capture-replay vulnerability exists that could cause execution of unauthor…
    CVE-2022-45788 (CVSS 7.5) — A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists that could cause arbitrar…
    CVE-2022-0222 (CVSS 7.5) — A CWE-269: Improper Privilege Management vulnerability exists that could cause a denial of service of the Ethe…
    CVE-2022-37300 (CVSS 9.8) — A CWE-640: Weak Password Recovery Mechanism for Forgotten Password vulnerability exists that could cause unaut…
    CVE-2022-22724 (CVSS 7.5) — A CWE-400: Uncontrolled Resource Consumption vulnerability exists that could cause a denial of service on port…
    CVE-2021-22792 (CVSS 7.5) — A CWE-476: NULL Pointer Dereference vulnerability that could cause a Denial of Service on the Modicon PLC cont…
    CVE-2021-22790 (CVSS 6.5) — A CWE-125: Out-of-bounds Read vulnerability that could cause a Denial of Service on the Modicon PLC controller…

    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