CVE-2021-40006

MEDIUMNVD 4.64.6—

4.6

Vulnerability of design defects in the security algorithm component. Successful exploitation of this vulnerability may affect confidentiality.

CVSS v3: 4.6
EG Score: 4.6(medium)
EPSS: 9.3%
KEV: Not listed

Published

January 10, 2022

Last Modified

February 24, 2026

References (6)

psirt@huaweihttps://consumer.huawei.com/en/support/bulletin/2023/8/
psirt@huaweihttps://device.harmonyos.com/en/docs/security/update/security-bulletins-202112-0000001183296718
psirt@huaweihttps://device.harmonyos.com/en/docs/security/update/security-bulletins-202308-0000001667644725
af854a3a-2127-422b-91ae-364da2661108https://consumer.huawei.com/en/support/bulletin/2023/8/
af854a3a-2127-422b-91ae-364da2661108https://device.harmonyos.com/en/docs/security/update/security-bulletins-202112-0000001183296718
af854a3a-2127-422b-91ae-364da2661108https://device.harmonyos.com/en/docs/security/update/security-bulletins-202308-0000001667644725

Weakness Classification(3)

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

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
2026-06-01 13:50 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 00:15 UTCepss_batch
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 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 05:13 UTCEG score recompute
2026-05-26 05:13 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2021-40006?

CVE-2021-40006 is a medium vulnerability published on January 10, 2022. Vulnerability of design defects in the security algorithm component. Successful exploitation of this vulnerability may affect confidentiality.

When was CVE-2021-40006 disclosed?

CVE-2021-40006 was first published in the National Vulnerability Database on January 10, 2022, with the most recent update on February 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-40006 actively exploited?

CVE-2021-40006 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 9.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-40006?

CVE-2021-40006 has a CVSS v3 base score of 4.6 (NVD).

How do I remediate CVE-2021-40006?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-40006, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-40006

Explore →

Is Your Infrastructure Affected by CVE-2021-40006?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2021-40006

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(3)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-40006?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (6)

Frequently asked(5)

Related CVEs(same CWE)