CVE-2021-25489

LOWNVD 3.39.0▲Trending — 4 sources updated this weekExploited in the wild

3.3

Assuming radio permission is gained, missing input validation in modem interface driver prior to SMR Oct-2021 Release 1 results in format string bug leading to kernel panic.

CVSS v3: 3.3
EG Score: 9.0(high)
EPSS: 57.4%
KEV: ⚠ Exploited

Published

October 6, 2021

Last Modified

October 30, 2025

References (3)

mobilehttps://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10
af854a3a-2127-422b-91ae-364da2661108https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10
134c704f-9b21-4f2e-91b3-4a467353bcc0https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-25489

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 20× 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.

2026-06-04 01:05 UTCEG score recompute
2026-06-04 01:05 UTCGHSA enrichment
2026-06-03 21:01 UTCEG score recompute
2026-06-03 21:01 UTCGHSA enrichment
2026-06-03 19:09 UTCkev_newly_listed
2026-06-03 16:57 UTCEG score recompute
2026-06-03 16:57 UTCGHSA enrichment
2026-06-03 12:53 UTCEG score recompute
2026-06-03 12:53 UTCGHSA enrichment
2026-06-03 08:49 UTCEG score recompute
2026-06-03 08:49 UTCGHSA enrichment
2026-06-03 04:45 UTCEG score recompute
2026-06-03 04:45 UTCGHSA enrichment
2026-06-03 00:41 UTCEG score recompute
2026-06-03 00:41 UTCGHSA enrichment
2026-06-02 20:37 UTCEG score recompute
2026-06-02 20:37 UTCGHSA enrichment
2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch

Frequently asked(6)

What is CVE-2021-25489?

CVE-2021-25489 is a low vulnerability published on October 6, 2021. Assuming radio permission is gained, missing input validation in modem interface driver prior to SMR Oct-2021 Release 1 results in format string bug leading to kernel panic.

When was CVE-2021-25489 disclosed?

CVE-2021-25489 was first published in the National Vulnerability Database on October 6, 2021, with the most recent update on October 30, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-25489 actively exploited?

Yes. CISA added CVE-2021-25489 to the Known Exploited Vulnerabilities catalog on June 29, 2023, affecting Samsung Mobile Devices. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.

What is the CVSS score of CVE-2021-25489?

CVE-2021-25489 has a CVSS v3 base score of 3.3 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.

Which products are affected by CVE-2021-25489?

CVE-2021-25489 affects Samsung Mobile Devices. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.

How do I remediate CVE-2021-25489?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-25489, 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-2021-25489

📅 Published

🔄 Last Modified

🔗 References (3)

Weakness Classification(2)

Data Freshness Timeline

❓ Frequently asked(6)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-25489?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (3)

Frequently asked(6)

Related CVEs(same CWE)