What is CVE-2021-39758?

CVE-2021-39758 is a high-severity vulnerability in Google Android, classified under Missing Authorization. CVSS score: 7.8/10. Published 2022-03-30.

How severe is CVE-2021-39758?

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

Auth bypass in Google Android

CVE-2021-39758

In WindowManager, there is a possible way to start a foreground activity from the background due to a missing permission check. 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-205130886

Vulnerability class: Broken Access Control

EPSS: 0.001 (0.9th 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 12.1
N/a Android — versions Android-12L

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

security@android.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-39758?: CVE-2021-39758 is a high-severity vulnerability in Google Android, classified under Missing Authorization. CVSS score: 7.8/10. Published 2022-03-30.
How severe is CVE-2021-39758?: High severity. CVSS v3 base score is 7.8 out of 10.