What is CVE-2016-2421?

CVE-2016-2421 is a medium-severity vulnerability in Google Android, classified under CWE-264. CVSS score: 6.1/10. Published 2016-04-18.

How severe is CVE-2016-2421?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Vulnerability in Google Android

CVE-2016-2421

Setup Wizard in Android 5.1.x before 5.1.1 and 6.x before 2016-04-01 allows physically proximate attackers to bypass the Factory Reset Protection protection mechanism and delete data via unspecified vectors, aka internal bug 26154410.

Published 2016-04-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (5.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 5.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Google Android — versions 5.1, 5.1.0, 6.0

Weakness classification (CWE)

CWE-264

References

source.android.com/security/bulletin/2016-04-02.html (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2016-2421?: CVE-2016-2421 is a medium-severity vulnerability in Google Android, classified under CWE-264. CVSS score: 6.1/10. Published 2016-04-18.
How severe is CVE-2016-2421?: Medium severity. CVSS v3 base score is 6.1 out of 10.