CVE-2021-46851

CRITICALNVD 9.89.8—

9.8

The DRM module has a vulnerability in verifying the secure memory attributes. Successful exploitation of this vulnerability may cause abnormal video playback.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 42.0%
KEV: Not listed

Published

November 9, 2022

Last Modified

May 1, 2025

Advisory Details (2)

Auto-updated May 25, 2026

No patch confirmed yet.

generic

Document

https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202211-0000001441016433

generic

HUAWEI EMUI/Magic UI security updates November 2022 | HUAWEI Support Global

https://consumer.huawei.com/en/support/bulletin/2022/11/

Weakness Classification(1)

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

CWE-284Improper Access Control

Data Freshness Timeline

(refreshed 10× in last 7d / 18× 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 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 13:43 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-25 12:25 UTCEG score recompute
2026-05-25 12:24 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2021-46851?

CVE-2021-46851 is a critical vulnerability published on November 9, 2022. The DRM module has a vulnerability in verifying the secure memory attributes. Successful exploitation of this vulnerability may cause abnormal video playback.

When was CVE-2021-46851 disclosed?

CVE-2021-46851 was first published in the National Vulnerability Database on November 9, 2022, with the most recent update on May 1, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-46851 actively exploited?

CVE-2021-46851 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 42.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-46851?

CVE-2021-46851 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2021-46851?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-46851, 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-2021-46851

📅 Published

🔄 Last Modified

📋 Advisory Details (2)