CVE-2025-29635 D-Link DIR-823X Command Injection

Exploited in the wild High 7.2 Published Updated

An authorized attacker can execute arbitrary commands on D-Link DIR-823X routers via a POST request to the set_prohibiting endpoint.

Exploited in the wild
Since 24 Apr 2026
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-29635?

CVE-2025-29635 is a high-severity command injection vulnerability in n/a, published on 25 Mar 2025. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A command injection vulnerability in D-Link DIR-823X 240126 and 240802 allows an authorized attacker to execute arbitrary commands on remote devices by sending a POST request to /goform/set_prohibiting via the corresponding function, triggering remote command execution.

Weakness: CWE-77

Which versions are affected by CVE-2025-29635?

It affects 1 product.

Products include Dlink Dir-823x Firmware.

How do I fix CVE-2025-29635?

No fix has been published for CVE-2025-29635 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 8 May 2026.

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

Is CVE-2025-29635 being exploited?

Yes. Attackers have exploited CVE-2025-29635 in the wild since at least 24 Apr 2026.

Public exploit code: 1 Nuclei template.

Sources

Also known as GHSA-m9wc-3h85-pp63.

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