What is CVE-2021-0307?

CVE-2021-0307 is a high-severity vulnerability in Google Android. CVSS score: 7.8/10. Published 2021-01-11.

How severe is CVE-2021-0307?

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

Is CVE-2021-0307 known to be exploited?

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

Vulnerability in Google Android

CVE-2021-0307

In updatePermissionSourcePackage of PermissionManagerService.java, there is a possible automatic runtime permission grant due to a confused deputy. This could lead to local escalation of privilege allowing a malicious app to silently gain access to a dangerous permission with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android; Versions: Android-10, Android-11; Android ID: A-155648771.

EPSS: 0.002 (6.3th 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 10.0, 11.0
N/a Android — versions Android-10, Android-11

Public proof-of-concept exploits

References

security@android.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2021-0307?: CVE-2021-0307 is a high-severity vulnerability in Google Android. CVSS score: 7.8/10. Published 2021-01-11.
How severe is CVE-2021-0307?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2021-0307 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.