What is CVE-2021-0318?

CVE-2021-0318 is a high-severity vulnerability in Google Android, classified under Use After Free. CVSS score: 7.8/10. Published 2021-01-11.

How severe is CVE-2021-0318?

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

Is CVE-2021-0318 known to be exploited?

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

Use After Free in Google Android

CVE-2021-0318

In appendEventsToCacheLocked of SensorEventConnection.cpp, there is a possible out of bounds write due to a use-after-free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android; Versions: Android-9, Android-8.1, Android-10, Android-11; Android ID: A-168211968.

Vulnerability class: Use-After-Free

EPSS: 0.003 (17.3th 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 8.1, 9.0, 10.0
N/a Android — versions Android-9, Android-8.1, Android-10

Weakness classification (CWE)

Public proof-of-concept exploits

References

security@android.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2021-0318?: CVE-2021-0318 is a high-severity vulnerability in Google Android, classified under Use After Free. CVSS score: 7.8/10. Published 2021-01-11.
How severe is CVE-2021-0318?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2021-0318 known to be exploited?: 14 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.