CVE-2020-5542

Published: Mar 16, 2020Modified: Jun 17, 2026

9.8

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 3.9 / Impact: 5.9

Source: NVD

Description

Buffer error 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 remote attackers to stop the network functions or execute malware via a specially crafted packet.

Affected (1)

Products: Mitsubishielectric: Iu1 1m20 D Firmware

Mitsubishielectric

1 product

Iu1 1m20 D Firmware

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Mitsubishielectric Iu1 1m20 D Firmware	Up to 1.0.7

Running on/with	Platform Versions
Mitsubishielectric Iu1 1m20 D	All versions

Related CWEs

Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

References (4)

https://jvn.jp/en/vu/JVNVU92370624/index.html

Source: vultures@jpcert.or.jp

Third Party Advisory

https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2019-004.pdf

Source: vultures@jpcert.or.jp

PatchVendor Advisory

https://jvn.jp/en/vu/JVNVU92370624/index.html

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2019-004.pdf

Source: af854a3a-2127-422b-91ae-364da2661108

PatchVendor Advisory

Timeline

No history available yet.