What is CVE-2021-0694?

CVE-2021-0694 is a high-severity vulnerability in Google Android, classified under Incorrect Authorization. CVSS score: 7.8/10. Published 2022-04-12.

How severe is CVE-2021-0694?

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

Auth bypass in Google Android

CVE-2021-0694

In setServiceForegroundInnerLocked of ActiveServices.java, there is a possible way for a background application to regain foreground permissions due to insufficient background restrictions. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-183147114

Vulnerability class: Broken Access Control

Published 2022-04-12 · 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 (1.4th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.4% 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 11.0
Android — versions Android-11

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

source.android.com/security/bulletin/2022-04-01 (Vendor Advisory)

Frequently asked questions

What is CVE-2021-0694?: CVE-2021-0694 is a high-severity vulnerability in Google Android, classified under Incorrect Authorization. CVSS score: 7.8/10. Published 2022-04-12.
How severe is CVE-2021-0694?: High severity. CVSS v3 base score is 7.8 out of 10.