An issue was discovered in Mitsubishi Electric Automation MELSEC-Q series Ethernet interface modules QJ71E71-100, all versions, QJ71E71-B5,…

Published 9 y ago 2017-02-13 · modified 4 mo ago 2026-06-17 · JSON

CVSS

8.6

v3.1 · NVD

CISA KEV

not known exploited

EPSS

2.6%

percentile 85%

Public exploits

none known

An issue was discovered in Mitsubishi Electric Automation MELSEC-Q series Ethernet interface modules QJ71E71-100, all versions, QJ71E71-B5, all versions, and QJ71E71-B2, all versions. The affected Ethernet interface module is connected to a MELSEC-Q PLC, which may allow a remote attacker to connect to the PLC via Port 5002/TCP and cause a denial of service, requiring the PLC to be reset to resume operation. This is caused by an Unrestricted Externally Accessible Lock.

Exploit prediction (EPSS)

2.61% probability of exploitation in the next 30 days, higher than 85% of all scored CVEs.

CVSS scores

Assigned by	Version	Score	Vector
NVD	3.1	8.6	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H`
NVD	2.0	5.0	`AV:N/AC:L/Au:N/C:N/I:N/A:P`

Affected products

n/a Mitsubishi Electric MELSEC-Q Series Ethernet Interface Module

Classification

Weakness

CWE-662 Improper Synchronization

References

ics-cert.us-cert.gov /advisories/ICSA-16-336-03 · x_refsource_MISC, x_transferred
securityfocus.com /bid/94632 · vdb-entry, x_refsource_BID, x_transferred

Sources

CVE List: CVE-2016-8368
NVD: CVE-2016-8368

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