What is CVE-2020-5546?

CVE-2020-5546 is a high-severity vulnerability in Mitsubishielectric Iu1-1m20-D, classified under Argument Injection. CVSS score: 8.8/10. Published 2020-03-16.

How severe is CVE-2020-5546?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Mitsubishielectric Iu1-1m20-D

CVE-2020-5546

Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') vulnerability in TCP function included in the firmware of Mitsubishi Electric MELQIC IU1 series IU1-1M20-D firmware version 1.0.7 and earlier allows an attacker on the same network segment to stop the network functions or execute malware via a specially crafted packet.

EPSS: 0.009 (56.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Mitsubishielectric Iu1-1m20-d
Mitsubishielectric Iu1-1m20-d_firmware
Mitsubishi Electric Corporation Melqic Iu1 Series — versions IU1-1M20-D firmware version 1.0.7 and earlier

Weakness classification (CWE)

CWE-88 — Argument Injection

References

vultures@jpcert.or.jp (Third Party Advisory, x_refsource_MISC)
vultures@jpcert.or.jp (Patch, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2020-5546?: CVE-2020-5546 is a high-severity vulnerability in Mitsubishielectric Iu1-1m20-D, classified under Argument Injection. CVSS score: 8.8/10. Published 2020-03-16.
How severe is CVE-2020-5546?: High severity. CVSS v3 base score is 8.8 out of 10.