What is CVE-2023-21091?

CVE-2023-21091 is a medium-severity vulnerability in Google Android, classified under Missing Authorization. CVSS score: 5.5/10. Published 2023-04-19.

How severe is CVE-2023-21091?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Auth bypass in Google Android

CVE-2023-21091

In canDisplayLocalUi of AppLocalePickerActivity.java, there is a possible way to change system app locales due to a missing permission check. This could lead to local denial of service across user boundaries with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-257954050

Vulnerability class: Broken Access Control

EPSS: 0.001 (0.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Google Android — versions 13.0
N/a Android — versions Android-13

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

security@android.com (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2023-21091?: CVE-2023-21091 is a medium-severity vulnerability in Google Android, classified under Missing Authorization. CVSS score: 5.5/10. Published 2023-04-19.
How severe is CVE-2023-21091?: Medium severity. CVSS v3 base score is 5.5 out of 10.