CVE-2021-40034

HIGHNVD 7.57.5—

7.5

The video framework has the memory overwriting vulnerability caused by addition overflow. Successful exploitation of this vulnerability may affect the availability.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 44.5%
KEV: Not listed

Published

August 10, 2022

Last Modified

November 21, 2024

References (4)

psirt@huaweihttps://consumer.huawei.com/en/support/bulletin/2022/8/
psirt@huaweihttps://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202208-0000001363876177
af854a3a-2127-422b-91ae-364da2661108https://consumer.huawei.com/en/support/bulletin/2022/8/
af854a3a-2127-422b-91ae-364da2661108https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202208-0000001363876177

Data Freshness Timeline

(refreshed 11× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:15 UTCEPSS rescore
2026-06-08 14:15 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-29 13:42 UTCEPSS rescore

Frequently asked(5)

What is CVE-2021-40034?

CVE-2021-40034 is a high vulnerability published on August 10, 2022. The video framework has the memory overwriting vulnerability caused by addition overflow. Successful exploitation of this vulnerability may affect the availability.

When was CVE-2021-40034 disclosed?

CVE-2021-40034 was first published in the National Vulnerability Database on August 10, 2022, 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-2021-40034 actively exploited?

CVE-2021-40034 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 44.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-40034?

CVE-2021-40034 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2021-40034?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-40034, 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-2021-40034

Explore →

Is Your Infrastructure Affected by CVE-2021-40034?

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

Start Free Scan →Browse All CVEs

CVE-2021-40034

📅 Published

🔄 Last Modified

🔗 References (4)