CVE-2021-47849 Mini Mouse 9.3.0 - Local File inclusion / Path Traversal

High 8.7 Published 21 Jan 2026 Updated 22 Jan 2026

Attackers can access sensitive system directories and retrieve file lists via path traversal in the device information endpoint.

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-2021-47849?

CVE-2021-47849 is a high-severity path traversal vulnerability in Yodinfo Mini Mouse, published on 21 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Mini Mouse 9.3.0 contains a path traversal vulnerability that allows attackers to access sensitive system directories through the device information endpoint. Attackers can retrieve file lists from system directories like /usr, /etc, and /var by manipulating file path parameters in API requests.

Weakness: CWE-22

Which versions are affected by CVE-2021-47849?

It affects 1 product.

Products include Yodinfo Mini Mouse.

How do I fix CVE-2021-47849?

No fix has been published for CVE-2021-47849 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2021-47849 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47849 exists.

Sources

Also known as GHSA-634x-c39w-j7px.