CVE-2021-46006 Missing authorization in n/a

Medium 6.5 Published 30 Mar 2022 Updated 9 Jul 2026

An unauthenticated attacker can modify router settings via an exposed API in Totolink A3100R 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-2021-46006?

CVE-2021-46006 is a medium-severity missing authorization vulnerability in n/a, published on 30 Mar 2022. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

In Totolink A3100R V5.9c.4577, "test.asp" contains an API-like function, which is not authenticated. Using this function, an attacker can configure multiple settings without authentication.

Weakness: CWE-306

Which versions are affected by CVE-2021-46006?

It affects 1 product.

Products include Totolink A3100r Firmware.

How do I fix CVE-2021-46006?

No fix has been published for CVE-2021-46006 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-2021-46006 being exploited?

There is no known exploitation of CVE-2021-46006 in the wild and no public exploit code.

Sources

Also known as GHSA-34v3-w4c4-qr24.