What is CVE-2020-3653?

CVE-2020-3653 is a critical-severity vulnerability in Qualcomm Msm8998, classified under Improper Input Validation. CVSS score: 9.1/10. Published 2020-04-16.

How severe is CVE-2020-3653?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Out-of-bounds Read in Qualcomm Msm8998

CVE-2020-3653

Possible buffer over-read in windows wlan driver function due to lack of check of length of variable received from userspace in Snapdragon Compute, Snapdragon Connectivity in MSM8998, QCA6390, SC7180, SC8180X, SDM850

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

Published 2020-04-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

EPSS exploit prediction

EPSS: 0.009 (58.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Weakness classification (CWE)

References

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

Frequently asked questions

What is CVE-2020-3653?: CVE-2020-3653 is a critical-severity vulnerability in Qualcomm Msm8998, classified under Improper Input Validation. CVSS score: 9.1/10. Published 2020-04-16.
How severe is CVE-2020-3653?: Critical severity. CVSS v3 base score is 9.1 out of 10.