CVE-2021-26278

MEDIUMNVD 6.36.3—

6.3

The wifi module exposes the interface and has improper permission control, leaking sensitive information about the device.

CVSS v3: 6.3
EG Score: 6.3(medium)
EPSS: 29.8%
KEV: Not listed

Published

December 17, 2024

Last Modified

April 15, 2026

References (1)

security@vivohttps://www.vivo.com/en/support/security-advisory-detail?id=7

Weakness Classification(1)

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

CWE-306Missing Authentication for Critical Function

Data Freshness Timeline

(refreshed 11× 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.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
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2026-05-31 00:15 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-22 21:16 UTCepss_batch
2026-05-22 21:16 UTCepss_batch
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2026-05-22 21:16 UTCepss_batch

Frequently asked(5)

What is CVE-2021-26278?

CVE-2021-26278 is a medium vulnerability published on December 17, 2024. The wifi module exposes the interface and has improper permission control, leaking sensitive information about the device.

When was CVE-2021-26278 disclosed?

CVE-2021-26278 was first published in the National Vulnerability Database on December 17, 2024, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-26278 actively exploited?

CVE-2021-26278 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 29.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-26278?

CVE-2021-26278 has a CVSS v3 base score of 6.3 (NVD).

How do I remediate CVE-2021-26278?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-26278, 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-2021-26278

📅 Published

🔄 Last Modified

🔗 References (1)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-26278?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (1)

Frequently asked(5)

Related CVEs(same CWE)