What is CVE-2021-0309?

CVE-2021-0309 is a medium-severity vulnerability in Google Android. CVSS score: 5.5/10. Published 2021-01-11.

How severe is CVE-2021-0309?

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

Is CVE-2021-0309 known to be exploited?

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

Vulnerability in Google Android

CVE-2021-0309

In onCreate of grantCredentialsPermissionActivity, there is a confused deputy. This could lead to local information disclosure and account access with no additional execution privileges needed. User interaction is needed for exploitation. Product: Android; Versions: Android-8.1, Android-9, Android-10, Android-11, Android-8.0; Android ID: A-158480899.

EPSS: 0.002 (5.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Google Android — versions 8.0, 8.1, 9.0
N/a Android — versions Android-8.1, Android-9, Android-10

Public proof-of-concept exploits

TinyNiko/android_

References

security@android.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2021-0309?: CVE-2021-0309 is a medium-severity vulnerability in Google Android. CVSS score: 5.5/10. Published 2021-01-11.
How severe is CVE-2021-0309?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2021-0309 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.