What is CVE-2016-3923?

CVE-2016-3923 is a medium-severity vulnerability in Google Android, classified under Improper Access Control. CVSS score: 5.5/10. Published 2016-10-10.

How severe is CVE-2016-3923?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Google Android

CVE-2016-3923

The Accessibility services in Android 7.0 before 2016-10-01 mishandle motion events, which allows attackers to conduct touchjacking attacks and consequently gain privileges via a crafted application, aka internal bug 30647115.

Published 2016-10-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.005 (40.1th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Google Android

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

android.googlesource.com/platform/frameworks/base/+/5f256310187b4ff2f13a7abb9af… (Patch, Issue Tracking)
source.android.com/security/bulletin/2016-10-01.html (Vendor Advisory)
www.securityfocus.com/bid/93310 (vdb-entry)

Frequently asked questions

What is CVE-2016-3923?: CVE-2016-3923 is a medium-severity vulnerability in Google Android, classified under Improper Access Control. CVSS score: 5.5/10. Published 2016-10-10.
How severe is CVE-2016-3923?: Medium severity. CVSS v3 base score is 5.5 out of 10.