CVE-2021-46867

HIGHNVD 7.57.5—

7.5

The HW_KEYMASTER module has a problem in releasing memory.Successful exploitation of this vulnerability may result in out-of-bounds memory access.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 32.2%
KEV: Not listed

Published

January 6, 2023

Last Modified

April 10, 2025

References (4)

psirt@huaweihttps://consumer.huawei.com/en/support/bulletin/2023/1/
psirt@huaweihttps://device.harmonyos.com/en/docs/security/update/security-bulletins-202301-0000001435541166
af854a3a-2127-422b-91ae-364da2661108https://consumer.huawei.com/en/support/bulletin/2023/1/
af854a3a-2127-422b-91ae-364da2661108https://device.harmonyos.com/en/docs/security/update/security-bulletins-202301-0000001435541166

Weakness Classification(1)

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

CWE-125Out-of-bounds Read

Data Freshness Timeline

(refreshed 14× 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.

2026-06-07 15:23 UTCepss_batch
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2026-05-29 13:42 UTCepss_batch
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2026-05-28 13:43 UTCepss_batch

Frequently asked(5)

What is CVE-2021-46867?

CVE-2021-46867 is a high vulnerability published on January 6, 2023. The HW_KEYMASTER module has a problem in releasing memory.Successful exploitation of this vulnerability may result in out-of-bounds memory access.

When was CVE-2021-46867 disclosed?

CVE-2021-46867 was first published in the National Vulnerability Database on January 6, 2023, with the most recent update on April 10, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-46867 actively exploited?

CVE-2021-46867 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 32.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-46867?

CVE-2021-46867 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2021-46867?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-46867, 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-2021-46867

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-46867?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (4)

Frequently asked(5)

Related CVEs(same CWE)