Description

Incorrect default permission in Samsung Flow prior to version 4.9.22.4 allows local attackers to launch an arbitrary activity with Samsung Flow privileges on the connected device.

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EPSS — Exploit Prediction

0.0011

Probability of exploitation

0.01%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other References

https://security.samsungmobile.com/serviceWeb.smsb?year=2026&month=10

Frequently Asked Questions

What is CVE-2026-21131? +

Incorrect default permission in Samsung Flow prior to version 4.9.22.4 allows local attackers to launch an arbitrary activity with Samsung Flow privileges on the connected device.

How do I check if I'm vulnerable to CVE-2026-21131? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.