What is CVE-2021-0339?

CVE-2021-0339 is a high-severity vulnerability in Google Android, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 7.8/10. Published 2021-02-10.

How severe is CVE-2021-0339?

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

Is CVE-2021-0339 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-2021-0339

In loadAnimation of WindowContainer.java, there is a possible way to keep displaying a malicious app while a target app is brought to the foreground. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10 Android-8.1 Android-9Android ID: A-145728687

EPSS: 0.007 (50.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

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

Weakness classification (CWE)

CWE-754 — Improper Check for Unusual or Exceptional Conditions

Public proof-of-concept exploits

References

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

Frequently asked questions

What is CVE-2021-0339?: CVE-2021-0339 is a high-severity vulnerability in Google Android, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 7.8/10. Published 2021-02-10.
How severe is CVE-2021-0339?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2021-0339 known to be exploited?: 14 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.