What is CVE-2023-21116?

CVE-2023-21116 is a medium-severity vulnerability in Google Android, classified under Incorrect Authorization. CVSS score: 6.7/10. Published 2023-05-15.

How severe is CVE-2023-21116?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Auth bypass in Google Android

CVE-2023-21116

In verifyReplacingVersionCode of InstallPackageHelper.java, there is a possible way to downgrade system apps below system image version due to a logic error in the code. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-256202273

Vulnerability class: Broken Access Control

EPSS: 0.001 (0.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Google Android — versions 11.0, 12.0, 12.1
N/a Android — versions Android-11 Android-12 Android-12L Android-13

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

security@android.com (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2023-21116?: CVE-2023-21116 is a medium-severity vulnerability in Google Android, classified under Incorrect Authorization. CVSS score: 6.7/10. Published 2023-05-15.
How severe is CVE-2023-21116?: Medium severity. CVSS v3 base score is 6.7 out of 10.