CVE-2021-25509

Severity: high (CVSS 7.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-11-05 · updated 2026-06-17
Weakness: CWE-20

Description

A missing input validation in Samsung Flow Windows application prior to Version 4.8.5.0 allows attackers to overwrite abtraty file in the Windows known folders.

Affected products

Samsung Mobile Samsung Flow: before 4.8.5.0 — fixed in 4.8.5.0

How to fix

Upgrade to a fixed version: Samsung Mobile Samsung Flow 4.8.5.0. Check the vendor advisory for mitigations.

References

https://security.samsungmobile.com/serviceWeb.smsb?year=2021&month=11
https://security.samsungmobile.com/serviceWeb.smsb?year=2021&month=11

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