What is CVE-2016-3838?

CVE-2016-3838 is a medium-severity vulnerability in Google Android, classified under Improper Access Control. CVSS score: 5.5/10. Published 2016-08-05.

How severe is CVE-2016-3838?

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

Vulnerability in Google Android

CVE-2016-3838

Android 6.x before 2016-08-01 allows attackers to cause a denial of service (loss of locked-screen 911 functionality) via a crafted application that uses the app-pinning feature, aka internal bug 28761672.

Published 2016-08-05 · 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:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (27.8th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 27.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Google Android — versions 6.0, 6.0.1

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

source.android.com/security/bulletin/2016-08-01.html (Vendor Advisory)
android.googlesource.com/platform/frameworks/base/+/468651c86a8adb7aa56c708d234… (Patch, Issue Tracking)
www.securityfocus.com/bid/92244 (vdb-entry)

Frequently asked questions

What is CVE-2016-3838?: CVE-2016-3838 is a medium-severity vulnerability in Google Android, classified under Improper Access Control. CVSS score: 5.5/10. Published 2016-08-05.
How severe is CVE-2016-3838?: Medium severity. CVSS v3 base score is 5.5 out of 10.