5.5

CVE-2025-21070: samsung notes Out-of-bounds Write

CVSS: 5.5v3.1MediumAnalyzed
Published 10-10-2025Last modified 10-10-2025
Open JSON

Vulnerability summary

CVE-2025-21070 is a medium (CVSS 5.5) Out-of-bounds Write vulnerability in samsung notes. EPSS estimates a 0.12% chance of exploitation in the next 30 days, higher than 1.7% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.12%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 10-10-2025
    PublishedVulnerability first disclosed.
  2. 10-10-2025
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.12%

Chance of exploitation in the next 30 days

Percentile

2%

Versus all other CVEs

30-day change

0.00 pp

From 0.12% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.12%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Samsung1 product

1 vendor · 1 product

References

1 links