CVE-2026-21003

MEDIUMNVD 6.86.8—

6.8

Improper input validation in data related to network restrictions prior to SMR Apr-2026 Release 1 allows physical attackers to bypass the restrictions.

CVSS v3: 6.8
EG Score: 6.8(medium)
EPSS: 16.0%
KEV: Not listed

Published

April 13, 2026

Last Modified

April 16, 2026

References (1)

mobilehttps://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=04

Data Freshness Timeline

(refreshed 18× 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.

2026-05-31 22:30 UTCepss_batch
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2026-05-31 00:16 UTCepss_batch
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2026-05-27 13:40 UTCepss_batch
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2026-05-26 13:44 UTCepss_batch
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2026-05-22 21:16 UTCepss_batch
2026-05-21 22:43 UTCepss_batch

Frequently asked(5)

What is CVE-2026-21003?

CVE-2026-21003 is a medium vulnerability published on April 13, 2026. Improper input validation in data related to network restrictions prior to SMR Apr-2026 Release 1 allows physical attackers to bypass the restrictions.

When was CVE-2026-21003 disclosed?

CVE-2026-21003 was first published in the National Vulnerability Database on April 13, 2026, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-21003 actively exploited?

CVE-2026-21003 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 16.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-21003?

CVE-2026-21003 has a CVSS v3 base score of 6.8 (NVD).

How do I remediate CVE-2026-21003?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-21003, 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-2026-21003

📅 Published

🔄 Last Modified

🔗 References (1)