CVE-2021-25521

Name: CVE-2021-25521
Creator: NVD / NIST
Published: 2021-12-08T15:15:08.577+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 3.3/10EPSS 0.21%

Last modified Jun 17, 2026

CVE-2021-25521 is a low-severity vulnerability rated 3.3/10 on the CVSS scale. 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.. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

3.3/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

0.21%

11.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Samsung	Internet	< 16.0.2

References

https://security.samsungmobile.com/serviceWeb.smsb?year=2021&month=12Vendor Advisory
https://security.samsungmobile.com/serviceWeb.smsb?year=2021&month=12Vendor Advisory

Timeline

Published: Dec 8, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-25521?

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.

How severe is CVE-2021-25521?

CVE-2021-25521 has a CVSS score of 3.3/10 (LOW severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.

How do I fix CVE-2021-25521?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-25521?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST