CVE-2025-21070
Out-of-bounds write in the SPI decoder in Samsung Notes prior to version 4.4.30.63 allows local...
Out-of-bounds write in the SPI decoder in Samsung Notes prior to version 4.4.30.63 allows local attackers to write out-of-bounds memory.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Out-of-bounds write in the SPI decoder in Samsung Notes prior to version 4.4.30.63 allows local attackers to write out-of-bounds memory.
- Record
CVE-2025-21070- CVSS 3.1
- 4.0 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
EUVDEUVD-2025-33663
Out-of-bounds write in the SPI decoder in Samsung Notes prior to version 4.4.30.63 allows local attackers to write out-of-bounds memory.
- Record
EUVD-2025-33663- CVSS 3.1
- 4.0 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-j6r2-93fv-jqp9
Out-of-bounds write in the SPI decoder in Samsung Notes prior to version 4.4.30.63 allows local...
Out-of-bounds write in the SPI decoder in Samsung Notes prior to version 4.4.30.63 allows local attackers to write out-of-bounds memory.
- Record
GHSA-j6r2-93fv-jqp9- CVSS 3.1
- 4.0 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Weakness
- CWE-787
- Updated
- 2026-11-02
NVD
Out-of-bounds write in the SPI decoder in Samsung Notes prior to version 4.4.30.63 allows local attackers to write out-of-bounds memory.
- Record
CVE-2025-21070- CVSS 3.1
- 4.0 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-787
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-21070 is a medium vulnerability (CVSS 4.0) in Samsung Notes, published October 10, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.12%, the 2nd percentile. No source names a fixed version.