How severe is CVE-2016-2421?

CVE-2016-2421 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2016-2421 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-2421?

CVE-2016-2421 primarily affects Google Android. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-2421?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2016-2421 published?

CVE-2016-2421 was published on 2016-04-18 and last updated on 2026-06-17.

CVE-2016-2421

CVE-2016-2421 is a medium-severity vulnerability in Google Android with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 6.6
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Google Android
Published: 2016-04-18
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2016-2421?: CVE-2016-2421 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2016-2421 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-2421?: CVE-2016-2421 primarily affects Google Android. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-2421?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-2421 published?: CVE-2016-2421 was published on 2016-04-18 and last updated on 2026-06-17.

References

http://source.android.com/security/bulletin/2016-04-02.html

Affected products (4)

cpe:2.3:o:google:android:5.1:*:*:*:*:*:*:*
cpe:2.3:o:google:android:5.1.0:*:*:*:*:*:*:*
cpe:2.3:o:google:android:6.0:*:*:*:*:*:*:*
cpe:2.3:o:google:android:6.0.1:*:*:*:*:*:*:*

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