What’s Vulnerable › Vulnerabilities

CVE-2021-25405

• Severity: medium (CVSS 5.5 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: 2021-06-11 · updated 2026-06-17
• Weakness: CWE-284

Description

An improper access control vulnerability in ScreenOffActivity in Samsung Notes prior to version 4.2.04.27 allows untrusted applications to access local files.

Affected products

• Samsung Mobile Samsung Notes: before 4.2.04.27 — fixed in 4.2.04.27

How to fix

Upgrade to a fixed version: Samsung Mobile Samsung Notes 4.2.04.27. Check the vendor advisory for mitigations.

References

• https://security.samsungmobile.com/serviceWeb.smsb?year=2021&month=5
• https://security.samsungmobile.com/serviceWeb.smsb?year=2021&month=5

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