CVE-2021-46894

CRITICALNVD 9.89.8—

9.8

Use After Free (UAF) vulnerability in the uinput module.Successful exploitation of this vulnerability may lead to kernel privilege escalation.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 33.5%
KEV: Not listed

Published

July 6, 2023

Last Modified

November 21, 2024

References (4)

psirt@huaweihttps://consumer.huawei.com/en/support/bulletin/2023/7/
psirt@huaweihttps://device.harmonyos.com/en/docs/security/update/security-bulletins-202307-0000001587168858
af854a3a-2127-422b-91ae-364da2661108https://consumer.huawei.com/en/support/bulletin/2023/7/
af854a3a-2127-422b-91ae-364da2661108https://device.harmonyos.com/en/docs/security/update/security-bulletins-202307-0000001587168858

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 15× 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.

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Frequently asked(5)

What is CVE-2021-46894?

CVE-2021-46894 is a critical vulnerability published on July 6, 2023. Use After Free (UAF) vulnerability in the uinput module.Successful exploitation of this vulnerability may lead to kernel privilege escalation.

When was CVE-2021-46894 disclosed?

CVE-2021-46894 was first published in the National Vulnerability Database on July 6, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-46894 actively exploited?

CVE-2021-46894 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 33.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-46894?

CVE-2021-46894 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2021-46894?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-46894, 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-2021-46894

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(2)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-46894?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (4)

Frequently asked(5)

Related CVEs(same CWE)