Vulnerability in Mitsubishielectric Melsec Iq-Rd81dl96
CVE-2020-5657
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.
EPSS: 0.011 (61.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Mitsubishielectric Melsec_iq-rd81dl96
- Mitsubishielectric Melsec_iq-rd81dl96_firmware
- Mitsubishielectric Melsec_iq-rd81mes96n
- Mitsubishielectric Melsec_iq-rd81mes96n_firmware
- Mitsubishielectric Melsec_iq-rd81opc96
- Mitsubishielectric Melsec_iq-rd81opc96_firmware
- Mitsubishielectric Melsec_iq-rj71eip91
- Mitsubishielectric Melsec_iq-rj71eip91_firmware
- Mitsubishielectric Melsec_iq-rj71pn92
- Mitsubishielectric Melsec_iq-rj71pn92_firmware
Weakness classification (CWE)
References
- vultures@jpcert.or.jp (x_refsource_MISC, Vendor Advisory)
- vultures@jpcert.or.jp (x_refsource_MISC, Vendor Advisory)
- vultures@jpcert.or.jp (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-5657?
- CVE-2020-5657 is a medium-severity vulnerability in Mitsubishielectric Melsec Iq-Rd81dl96, classified under Argument Injection. CVSS score: 6.5/10. Published 2020-11-02.
- How severe is CVE-2020-5657?
- Medium severity. CVSS v3 base score is 6.5 out of 10.