What is CVE-2021-30312?

CVE-2021-30312 is a high-severity vulnerability in Qualcomm Apq8053, classified under Improper Authentication. CVSS score: 7.5/10. Published 2021-10-20.

How severe is CVE-2021-30312?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Qualcomm Apq8053

CVE-2021-30312

Improper authentication of sub-frames of a multicast AMSDU frame can lead to information disclosure in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking

Vulnerability class: Broken Authentication

Published 2021-10-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.006 (48.9th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

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

Frequently asked questions

What is CVE-2021-30312?: CVE-2021-30312 is a high-severity vulnerability in Qualcomm Apq8053, classified under Improper Authentication. CVSS score: 7.5/10. Published 2021-10-20.
How severe is CVE-2021-30312?: High severity. CVSS v3 base score is 7.5 out of 10.