What is CVE-2021-30266?

CVE-2021-30266 is a medium-severity vulnerability in Qualcomm Apq8009, classified under Use After Free. CVSS score: 6.7/10. Published 2021-11-12.

How severe is CVE-2021-30266?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Use After Free in Qualcomm Apq8009

CVE-2021-30266

Possible use after free due to improper memory validation when initializing new interface via Interface add command in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking

Vulnerability class: Use-After-Free

Published 2021-11-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (6.4th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Weakness classification (CWE)

CWE-416 — Use After Free

References

www.qualcomm.com/company/product-security/bulletins/november-2021-bulletin (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2021-30266?: CVE-2021-30266 is a medium-severity vulnerability in Qualcomm Apq8009, classified under Use After Free. CVSS score: 6.7/10. Published 2021-11-12.
How severe is CVE-2021-30266?: Medium severity. CVSS v3 base score is 6.7 out of 10.