What is CVE-2021-0334?

CVE-2021-0334 is a high-severity vulnerability in Google Android, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2021-02-10.

How severe is CVE-2021-0334?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2021-0334 known to be exploited?

14 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Google Android

CVE-2021-0334

In onTargetSelected of ResolverActivity.java, there is a possible settings bypass allowing an app to become the default handler for arbitrary domains. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-8.1 Android-9 Android-10 Android-11Android ID: A-163358811

EPSS: 0.003 (20.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Google Android — versions 8.1, 9.0, 10.0
N/a Android — versions Android-8.1 Android-9 Android-10 Android-11

Weakness classification (CWE)

CWE-732 — Incorrect Permission Assignment for Critical Resource

Public proof-of-concept exploits

References

security@android.com (Patch, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-0334?: CVE-2021-0334 is a high-severity vulnerability in Google Android, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2021-02-10.
How severe is CVE-2021-0334?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2021-0334 known to be exploited?: 14 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.