CVE-2023-21091

Name: CVE-2023-21091
Creator: NVD / NIST
Published: 2023-04-19T20:15:11.68+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.08%

Last modified Jun 17, 2026

CVE-2023-21091 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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. EPSS estimates a 0.08% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.08%

0.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Google	Android	13.0

References

https://source.android.com/security/bulletin/2023-04-01Patch, Vendor Advisory
https://source.android.com/security/bulletin/2023-04-01Patch, Vendor Advisory

Timeline

Published: Apr 19, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-21091?

How severe is CVE-2023-21091?

CVE-2023-21091 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.08% probability of exploitation in the next 30 days.

How do I fix CVE-2023-21091?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-21091?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST