CVE-2023-21467

MEDIUMNVD 4.69.8▲

4.6

Error in 3GPP specification implementation in Exynos baseband prior to SMR Apr-2023 Release 1 allows incorrect handling of unencrypted message.

CVSS v3: 4.6
EG Score: 9.8(medium)
EPSS: 20.7%
KEV: Not listed

Published

September 3, 2025

Last Modified

September 8, 2025

References (1)

mobilehttps://security.samsungmobile.com/securityUpdate.smsb?year=2023&month=04

Weakness Classification(1)

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

CWE-287Improper Authentication

Data Freshness Timeline

(refreshed 17× 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.

2026-06-06 13:46 UTCepss_batch
2026-06-06 13:46 UTCepss_batch
2026-06-05 22:46 UTCepss_batch
2026-06-05 22:46 UTCepss_batch
2026-06-05 22:46 UTCepss_batch
2026-06-05 06:09 UTCepss_batch
2026-06-05 06:09 UTCepss_batch
2026-06-04 13:11 UTCepss_batch
2026-06-04 13:11 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 23:34 UTCEG score recompute

Frequently asked(5)

What is CVE-2023-21467?

CVE-2023-21467 is a medium vulnerability published on September 3, 2025. Error in 3GPP specification implementation in Exynos baseband prior to SMR Apr-2023 Release 1 allows incorrect handling of unencrypted message.

When was CVE-2023-21467 disclosed?

CVE-2023-21467 was first published in the National Vulnerability Database on September 3, 2025, with the most recent update on September 8, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-21467 actively exploited?

CVE-2023-21467 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 20.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-21467?

CVE-2023-21467 has a CVSS v3 base score of 4.6 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.8.

How do I remediate CVE-2023-21467?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-21467, 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-2023-21467

📅 Published

🔄 Last Modified

🔗 References (1)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-21467?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (1)

Frequently asked(5)

Related CVEs(same CWE)