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CVE-2025-21057VulnerabilityPublished

CVE-2025-21057: Samsung Notes · Use of Implicit Intent for Sensitive Communication

Affects Samsung NotesSource CVE Database V5

0

Not known to be exploited · CVSS 4.0 Medium : upgrade to 4.4.30.63 when convenient.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score
4.0Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 1% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 4.4.30.63
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Oct 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

What to do

Upgrade Samsung Notes to 4.4.30.63.

Affected software

ProductAffectedFixed in
Samsung Mobile Samsung NotesAffected
  • <4.4.30.63
Fixed in
  • 4.4.30.63

AI-suggested

1. Monitor Samsung Mobile and Samsung Notes vendor communications for official patches or updates addressing CVE-2025-21057 and apply them promptly once available. 2. Until patched, restrict physical and local access to Samsung devices used within the organization to trusted personnel only. 3. Implement mobile device management (MDM) policies that limit installation of untrusted or unnecessary local applications that could exploit implicit intents. 4. Educate users about the risks of sharing sensitive notes and encourage use of encrypted note-taking or secure communication alternatives. 5. Disable or restrict the use of implicit intents for sensitive data sharing via custom device policies or app configurations if possible. 6. Regularly audit Samsung devices for unauthorized applications or suspicious activity that could indicate exploitation attempts. 7. Consider encrypting sensitive notes at rest and in transit within the device to add an additional layer of protection.

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.

References

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