3.3
CVSSv2

CVE-2020-5657

Published: 02/11/2020 Updated: 10/11/2020
CVSS v2 Base Score: 3.3 | Impact Score: 2.9 | Exploitability Score: 6.5
CVSS v3 Base Score: 6.5 | Impact Score: 3.6 | Exploitability Score: 2.8
VMScore: 294
Vector: AV:A/AC:L/Au:N/C:N/I:N/A:P

Vulnerability Summary

Improper neutralization of argument delimiters in a command ('Argument Injection') vulnerability in TCP/IP function included in the firmware of MELSEC iQ-R series (RJ71EIP91 EtherNet/IP Network Interface Module First 2 digits of serial number are '02' or before, RJ71PN92 PROFINET IO Controller Module First 2 digits of serial number are '01' or before, RD81DL96 High Speed Data Logger Module First 2 digits of serial number are '08' or before, RD81MES96N MES Interface Module First 2 digits of serial number are '04' or before, and RD81OPC96 OPC UA Server Module First 2 digits of serial number are '04' or before) allows unauthenticated attackers on adjacent network to stop the network functions of the products via a specially crafted packet.

Vulnerability Trend

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mitsubishielectric melsec_iq-rj71eip91_firmware -

mitsubishielectric melsec_iq-rj71pn92_firmware -

mitsubishielectric melsec_iq-rd81dl96_firmware -

mitsubishielectric melsec_iq-rd81mes96n_firmware -

mitsubishielectric melsec_iq-rd81opc96_firmware -