CVE-2021-25509

Name: CVE-2021-25509
Creator: NVD / NIST
Published: 2021-11-05T03:15:12.013+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.1/10EPSS 0.22%

Last modified Jun 17, 2026

CVE-2021-25509 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. 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.. EPSS estimates a 0.22% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.1/10

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

EPSS Probability

0.22%

12.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Samsung	Samsung Flow	< 4.8.5.0

References

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

Timeline

Published: Nov 5, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-25509?

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.

How severe is CVE-2021-25509?

CVE-2021-25509 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 0.22% probability of exploitation in the next 30 days.

How do I fix CVE-2021-25509?

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-2021-25509?

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

Scan your code now

Source: NVD / NIST