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VulnerabilityPublished

CVE-2025-21069: Samsung Notes · Out-of-bounds Read

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 26 Oct 2026, 12:29 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 2% 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:N/I:L/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 26 Oct 2026.

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’s official security advisories and update Samsung Notes to version 4.4.30.63 or later as soon as the patch becomes available.
  2. Restrict physical and local access to devices running Samsung Notes, especially in high-risk environments, to prevent exploitation by unauthorized users.
  3. Implement mobile device management (MDM) solutions to enforce application updates and control app installations.
  4. Educate users on the risks of leaving devices unattended or lending them to untrusted individuals.
  5. Regularly audit devices for outdated software versions and enforce compliance policies.
  6. Consider disabling or limiting the use of Samsung Notes on devices handling highly sensitive information until the vulnerability is patched.
  7. Employ endpoint detection and response (EDR) tools to monitor for unusual local activity that might indicate exploitation attempts.

Description

Out-of-bounds read in the parsing of image data in Samsung Notes prior to version 4.4.30.63 allows local attackers to access out-of-bounds memory.

References

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