CVE-2021-25493

MEDIUMNVD 4.04.0—

4.0

Lack of boundary checking of a buffer in libSPenBase library of Samsung Notes prior to Samsung Note version 4.3.02.61 allows OOB read

CVSS v3: 4.0
EG Score: 4.0(medium)
EPSS: 16.8%
KEV: Not listed

Published

October 6, 2021

Last Modified

November 21, 2024

References (2)

mobilehttps://security.samsungmobile.com/serviceWeb.smsb?year=2021&month=10
af854a3a-2127-422b-91ae-364da2661108https://security.samsungmobile.com/serviceWeb.smsb?year=2021&month=10

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 16× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

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Frequently asked(5)

What is CVE-2021-25493?

CVE-2021-25493 is a medium vulnerability published on October 6, 2021. Lack of boundary checking of a buffer in libSPenBase library of Samsung Notes prior to Samsung Note version 4.3.02.61 allows OOB read

When was CVE-2021-25493 disclosed?

CVE-2021-25493 was first published in the National Vulnerability Database on October 6, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-25493 actively exploited?

CVE-2021-25493 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 16.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-25493?

CVE-2021-25493 has a CVSS v3 base score of 4.0 (NVD).

How do I remediate CVE-2021-25493?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-25493, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2021-25493

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(2)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-25493?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)