CVE-2025-4268 TOTOLINK A720R cstecgi.cgi missing authentication

Medium 6.9 Published 5 May 2025 Updated 5 May 2025

Remote attackers can trigger system reboots without authentication via the cstecgi.cgi interface on TOTOLINK A720R routers.

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-2025-4268?

CVE-2025-4268 is a medium-severity missing authorization vulnerability in TOTOLINK A720R, published on 5 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability has been found in TOTOLINK A720R 4.1.5cu.374 and classified as critical. This vulnerability affects unknown code of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument topicurl with the input RebootSystem leads to missing authentication. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-306, CWE-287

Which versions are affected by CVE-2025-4268?

It affects 1 product.

Products include Totolink A720r Firmware.

How do I fix CVE-2025-4268?

No fix has been published for CVE-2025-4268 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2025-4268 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-4268 exists.

Sources

Also known as GHSA-cfcp-527j-53hf.