CVE-2021-43474 Command injection in n/a

Critical 9.8 Published 7 Apr 2022 Updated 4 Aug 2024

Attackers can execute arbitrary commands on D-Link DIR-823G routers via the HNAP1 function, 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-2021-43474?

CVE-2021-43474 is a critical command injection vulnerability in Dlink Dir-823g Firmware, published on 7 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An Access Control vulnerability exists in D-Link DIR-823G REVA1 1.02B05 (Lastest) via any parameter in the HNAP1 function

Weakness: CWE-77

Which versions are affected by CVE-2021-43474?

It affects 1 product.

Products include Dlink Dir-823g Firmware.

How do I fix CVE-2021-43474?

No fix has been published for CVE-2021-43474 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-2021-43474 being exploited?

There is no known exploitation of CVE-2021-43474 in the wild and no public exploit code.

All Dlink Dir-823g Firmware vulnerabilities

Sources

Also known as GHSA-vp8j-4ggx-7j67.