What is CVE-2016-3878?

CVE-2016-3878 is a medium-severity vulnerability in Google Android, classified under Improper Access Control. CVSS score: 5.5/10. Published 2016-09-11.

How severe is CVE-2016-3878?

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

Vulnerability in Google Android

CVE-2016-3878

decoder/ih264d_api.c in mediaserver in Android 6.x before 2016-09-01 mishandles the case of decoding zero MBs, which allows remote attackers to cause a denial of service (device hang or reboot) via a crafted media file, aka internal bug 29493002.

Published 2016-09-11 · 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: 0.007 (51.4th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Google Android — versions 6.0, 6.0.1

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

www.securityfocus.com/bid/92821 (vdb-entry)
android.googlesource.com/platform/external/libavc/+/7109ce3f8f90a28ca9f0ee6e14f… (Patch, Issue Tracking)
source.android.com/security/bulletin/2016-09-01.html (Vendor Advisory)
www.securitytracker.com/id/1036763 (vdb-entry)

Frequently asked questions

What is CVE-2016-3878?: CVE-2016-3878 is a medium-severity vulnerability in Google Android, classified under Improper Access Control. CVSS score: 5.5/10. Published 2016-09-11.
How severe is CVE-2016-3878?: Medium severity. CVSS v3 base score is 5.5 out of 10.