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)
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
schneiderCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 79%
VendorProductVersion
schneider-electricmodicon_m340_bmxp342020_firmware
𝑥
< 3.40
schneider-electricbmxnoe0100_firmware
*
schneider-electricbmxnoe0110_firmware
*
schneider-electricbmxnoc0401_firmware
*
schneider-electricbmxnor0200h_rtu_firmware
*
schneider-electrictsxp574634_firmware
*
schneider-electrictsxp575634_firmware
*
schneider-electrictsxp576634_firmware
*
schneider-electric140cpu65150_firmware
*
schneider-electric140noe771x1_firmware
*
schneider-electric140noc78x00_firmware
*
schneider-electric140noc77101_firmware
*
schneider-electrictsxety4103_firmware
*
schneider-electrictsxety5103_firmware
*
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-257-02
https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-257-02