CVE-2021-30309

HIGHNVD 7.87.8—Trending — 3 sources updated this week

7.8

Improper size validation of QXDM commands can lead to memory corruption in Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile

CVSS v3: 7.8
EG Score: 7.8(medium)
EPSS: 16.0%
KEV: Not listed

Published

February 11, 2022

Last Modified

November 21, 2024

References (2)

product-security@qualcommhttps://www.qualcomm.com/company/product-security/bulletins/february-2022-bulletin
af854a3a-2127-422b-91ae-364da2661108https://www.qualcomm.com/company/product-security/bulletins/february-2022-bulletin

Weakness Classification(1)

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

CWE-120Buffer Copy without Checking Size (Classic Buffer Overflow)

Data Freshness Timeline

(refreshed 9× in last 7d / 9× 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.

2026-05-28 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 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 03:15 UTCEG score recompute
2026-05-26 03:15 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2021-30309?

CVE-2021-30309 is a high vulnerability published on February 11, 2022. Improper size validation of QXDM commands can lead to memory corruption in Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile

When was CVE-2021-30309 disclosed?

CVE-2021-30309 was first published in the National Vulnerability Database on February 11, 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-2021-30309 actively exploited?

CVE-2021-30309 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 16.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-30309?

CVE-2021-30309 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2021-30309?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-30309, 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-2021-30309

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Is Your Infrastructure Affected by CVE-2021-30309?

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CVE-2021-30309

📅 Published

🔄 Last Modified

🔗 References (2)