What is CVE-2021-39767?

CVE-2021-39767 is a high-severity vulnerability in Google Android, classified under Initialization of a Resource with an Insecure Default. CVSS score: 7.8/10. Published 2022-03-30.

How severe is CVE-2021-39767?

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

RCE in Google Android

CVE-2021-39767

In miniadb, there is a possible way to get read/write access to recovery system properties due to an insecure default value. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12LAndroid ID: A-201308542

Published 2022-03-30 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.001 (1.3th percentile), scored 2026-09-28.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000

Affected products

Google Android — versions 12.1
Android — versions Android-12L

Weakness classification (CWE)

CWE-1188 — Initialization of a Resource with an Insecure Default

References

source.android.com/security/bulletin/android-12l (Vendor Advisory)

Frequently asked questions

What is CVE-2021-39767?: CVE-2021-39767 is a high-severity vulnerability in Google Android, classified under Initialization of a Resource with an Insecure Default. CVSS score: 7.8/10. Published 2022-03-30.
How severe is CVE-2021-39767?: High severity. CVSS v3 base score is 7.8 out of 10.