Path traversal in Mitsubishi Electric Factory Automation Products

Published: 2020-07-31

Security Advisory

This security advisory describes one medium risk vulnerability.

1) Path traversal

Risk: Medium

CVSSv3: 6.5 [CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-14523

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No


The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system, leading to arbitrary code execution.


Install update from vendor's website.

Vulnerable software versions

CW Configurator: -, 1.010L

Mitsubishi Electric FR Configurator2: -, 1.22Y

GX Works2: -, 1.595V

GX Works3: -, 1.063R

MELSEC iQ-R series: -

MELSOFT iQ AppPortal: -

MELSOFT Navigator: -

MI Configurator: -

MR Configurator2: -

MT Works2: -, 1.156N

MX Component: -

RT ToolBox3: -, 1.70Y

CPE External links

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.