Heap-based buffer overflow in Samsung Notes
Priority LOW 34CWE-122Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.
Summary
A possible heap buffer overflow vulnerability in libSPenBase library of Samsung Notes prior to Samsung Note version 4.3.02.61 allows arbitrary code execution.
Why it matters now
EPSS 0.00283 20th percentileScored 2026-11-07
Fix Fixed Samsung Notes (Samsung Mobile): 4.3.02.61
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Samsung Notes (Samsung Mobile) Fixed in 4.3.02.61
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Samsung Notes 4.3.02.61
7 records Highest priority Priority LOW 7 LOW
Other records, highest priority first
- TI-2021-07737 Buffer overflow in Samsung NotesPriority LOW 34
- TI-2021-07736 Buffer overflow in Samsung NotesPriority LOW 34
- TI-2021-07735 Buffer overflow in Samsung NotesPriority LOW 34
Timeline
- 2026-10-02 Threatist record created from CVE-2021-25495
- 2026-10-03 Alias added: GHSA-8xx6-wgwv-844x
References
More Samsung Notes vulnerabilities
- TI-2024-22956 Out-of-bounds write in Samsung Notes CVSS 3.1CRITICAL 9.8
- TI-2024-22955 Path traversal in Samsung Notes prior to version 4.4.21.62 allows local attackers to execute arbitrary code. CVSS 3.1HIGH 7.8
- TI-2024-22922 Out-of-bounds write in Samsung Notes CVSS 3.1HIGH 7.8
- TI-2025-14927 Out-of-bounds write in Samsung Notes CVSS 3.1HIGH 7.8
- TI-2025-14925 Out-of-bounds write in Samsung Notes CVSS 3.1HIGH 7.8
- TI-2024-22959 Out-of-bounds write in Samsung Notes CVSS 3.1HIGH 7.8
Sources
- CVE-2021-25495 · CVE Program
- CVE-2021-25495 · NVD
- FIRST EPSS
- GHSA-8xx6-wgwv-844x · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences