CVE-2023-39637 Command injection in n/a

Critical 9.8 Published 12 Sep 2023 Updated 9 Jul 2026

Attackers can execute arbitrary commands on D-Link DIR-816 routers via the Diagnosis component, potentially compromising the device.

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-2023-39637?

CVE-2023-39637 is a critical command injection vulnerability in Dlink Dir-816 Firmware, published on 12 Sep 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

D-Link DIR-816 A2 1.10 B05 was discovered to contain a command injection vulnerability via the component /goform/Diagnosis.

Weakness: CWE-77

Which versions are affected by CVE-2023-39637?

It affects 1 product.

Products include Dlink Dir-816 Firmware.

How do I fix CVE-2023-39637?

No fix has been published for CVE-2023-39637 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-2023-39637 being exploited?

There is no known exploitation of CVE-2023-39637 in the wild and no public exploit code.

All Dlink Dir-816 Firmware vulnerabilities

Sources

Also known as GHSA-93fj-26p2-qqgh.