CVE-2025-20994 Missing authorization in Samsung Internet

Medium 4.5 Published 4 Jun 2025 Updated 4 Jun 2025

Local attackers can read and write arbitrary files due to improper permission handling in Samsung Internet on non-Samsung devices.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2025-20994?

CVE-2025-20994 is a medium-severity missing authorization vulnerability in Samsung Internet, published on 4 Jun 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Improper handling of insufficient permission in SyncClientProvider in Samsung Internet installed on non-Samsung Device prior to version 28.0.0.59 allows local attackers to access read and write arbitrary files.

Which versions are affected by CVE-2025-20994?

It affects 1 product.

Products include Samsung Internet.

How do I fix CVE-2025-20994?

No fix has been published for CVE-2025-20994 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-2025-20994 being exploited?

There is no known exploitation of CVE-2025-20994 in the wild and no public exploit code.

Sources

Also known as GHSA-6w89-5w4v-7vf6.