What is CVE-2021-30261?

CVE-2021-30261 is a high-severity vulnerability in Qualcomm Apq8009, classified under Improper Input Validation. CVSS score: 8.4/10. Published 2021-09-17.

How severe is CVE-2021-30261?

High severity. CVSS v3 base score is 8.4 out of 10.

Improper input validation in Qualcomm Apq8009

CVE-2021-30261

Possible integer and heap overflow due to lack of input command size validation while handling beacon template update command from HLOS in Snapdragon Auto, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2021-09-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (4.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 4.7% 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-20 — Improper Input Validation

References

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

Frequently asked questions

What is CVE-2021-30261?: CVE-2021-30261 is a high-severity vulnerability in Qualcomm Apq8009, classified under Improper Input Validation. CVSS score: 8.4/10. Published 2021-09-17.
How severe is CVE-2021-30261?: High severity. CVSS v3 base score is 8.4 out of 10.