CVE-2023-2378 Ubiquiti EdgeRouter X Web Management command injection

High 8.6 Published 28 Apr 2023 Updated 9 Jul 2026

Remote attackers with authentication can execute arbitrary commands via the Web Management Interface on Ubiquiti EdgeRouter X devices.

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

What is CVE-2023-2378?

CVE-2023-2378 is a high-severity command injection vulnerability in Ubiquiti EdgeRouter X, published on 28 Apr 2023. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A flaw has been found in Ubiquiti EdgeRouter X up to 2.0.9-hotfix.6. This affects an unknown function of the component Web Management Interface. This manipulation of the argument suffix-rate-up causes command injection. The attack may be initiated remotely. The exploit has been published and may be used. The real existence of this vulnerability is still doubted at the moment. The vendor position is that post-authentication issues are not accepted as vulnerabilities.

Weakness: CWE-77, CWE-74

Which versions are affected by CVE-2023-2378?

It affects 2 products.

Products include Ui Er-X-Sfp Firmware, Ui Er-X Firmware.

How do I fix CVE-2023-2378?

No fix has been published for CVE-2023-2378 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2023-2378 being exploited?

There is no known exploitation of CVE-2023-2378 in the wild and no public exploit code.

Sources

Also known as GHSA-xj89-hjg5-97v6.