CVE-2025-6621 TOTOLINK CA300-PoE ap.so QuickSetting os command injection

Medium 5.3 Published 25 Jun 2025 Updated 26 Jun 2025

Remote attackers can execute arbitrary OS commands via the QuickSetting function in TOTOLINK CA300-PoE devices.

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

What is CVE-2025-6621?

CVE-2025-6621 is a medium-severity command injection vulnerability in TOTOLINK CA300-PoE, published on 25 Jun 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability classified as critical has been found in TOTOLINK CA300-PoE 6.2c.884. This affects the function QuickSetting of the file ap.so. The manipulation of the argument hour/minute leads to os command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-78, CWE-77

Which versions are affected by CVE-2025-6621?

It affects 1 product.

Products include Totolink Ca300-Poe Firmware.

How do I fix CVE-2025-6621?

No fix has been published for CVE-2025-6621 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-2025-6621 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-6621 exists.

Sources

Also known as GHSA-8pmg-2x8v-mfv9.