CVE-2017-14439 Denial of service in Moxa

High 7.5 Published 14 May 2018 Updated 17 Sep 2024

An attacker can cause a denial of service on Moxa EDR-810 devices by sending a specially crafted large packet to port 4001.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2017-14439?

CVE-2017-14439 is a high-severity denial of service vulnerability in Talos Moxa, published on 14 May 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Exploitable denial of service vulnerabilities exists in the Service Agent functionality of Moxa EDR-810 V4.1 build 17030317. A specially crafted packet can cause a denial of service. An attacker can send a large packet to 4001/tcp to trigger this vulnerability.

Weakness: CWE-20

Which versions are affected by CVE-2017-14439?

It affects 1 product.

Products include Moxa Edr-810 Firmware.

How do I fix CVE-2017-14439?

No fix has been published for CVE-2017-14439 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2017-14439 being exploited?

There is no known exploitation of CVE-2017-14439 in the wild and no public exploit code.

Sources

Also known as GHSA-7v9w-wvcc-rp5c.