What is CVE-2020-3633?

CVE-2020-3633 is a critical-severity vulnerability in Qualcomm Apq8009, classified under Improper Validation of Array Index. CVSS score: 9.8/10. Published 2020-06-02.

How severe is CVE-2020-3633?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Qualcomm Apq8009

CVE-2020-3633

Array out of bound may occur while playing mp3 file as no check is there on offset if it is greater than the buffer allocated or not in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables in APQ8009, APQ8053, APQ8096AU, APQ8098, Kamorta, MDM9206, MDM9207C, MDM9607, MSM8905, MSM8909W, MSM8917, MSM8953, MSM8996AU, MSM8998, QCS405, QCS605, QM215, Rennell, Saipan, SDA660, SDM429, SDM429W, SDM439, SDM450, SDM630, SDM632, SDM636, SDM660, SDM670, SDM710, SDM845, SDX20, SM6150, SM7150, SM8150, SM8250, SXR2130

Published 2020-06-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.011 (64.6th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 64.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-129 — Improper Validation of Array Index

References

www.qualcomm.com/company/product-security/bulletins/may-2020-bulletin (Vendor Advisory)

Frequently asked questions

What is CVE-2020-3633?: CVE-2020-3633 is a critical-severity vulnerability in Qualcomm Apq8009, classified under Improper Validation of Array Index. CVSS score: 9.8/10. Published 2020-06-02.
How severe is CVE-2020-3633?: Critical severity. CVSS v3 base score is 9.8 out of 10.