Is CVE-2025-21057 in the CISA KEV catalog?

No. CVE-2025-21057 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-21057?

CVE-2025-21057 has a CVSS v3 base score of 4.0 (MEDIUM).

What is the EPSS score for CVE-2025-21057?

CVE-2025-21057 has an EPSS score of 0.10% (1th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-21057?

Upgrade notes to 4.4.30.63 or later.

CVE & CISA-KEV Catalog

CVE-2025-21057

MEDIUM

4.0

CVSS v3

NVD

Description

Use of implicit intent for sensitive communication in Samsung Notes prior to version 4.4.30.63 allows local attackers to access shared notes.

How to fix

Remediation Available

notesNVD

Affected:< 4.4.30.63Fixed in:4.4.30.63CVE-2025-21057derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.10%probability of exploitation in 30 days

1stpercentile

Low risk: more likely to be exploited than 1% of all known CVEs.

References

Vendor Advisory1

security.samsungmobile.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-20.