CVE-2021-25521 Information disclosure in Samsung Internet

Medium 4.0 Published 8 Dec 2021 Updated 3 Aug 2024

Untrusted applications can retrieve the current tab URL from Samsung Internet due to an insecure caller check in the sharevia deeplink logic.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-25521?

CVE-2021-25521 is a medium-severity vulnerability in Samsung Internet, published on 8 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Insecure caller check in sharevia deeplink logic prior to Samsung Internet 16.0.2 allows unstrusted applications to get current tab URL in Samsung Internet.

Weakness: CWE-552, CWE-285

Which versions are affected by CVE-2021-25521?

It affects 1 product.

Products include Samsung Internet.

How do I fix CVE-2021-25521?

No fix has been published for CVE-2021-25521 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-25521 being exploited?

There is no known exploitation of CVE-2021-25521 in the wild and no public exploit code.

Sources

Also known as GHSA-hwh5-9mfv-g2m5.