CVE-2023-21116

Name: CVE-2023-21116
Creator: NVD / NIST
Published: 2023-05-15T22:15:12.027+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.7/10EPSS 0.09%

Last modified Jun 17, 2026

CVE-2023-21116 is a medium-severity vulnerability rated 6.7/10 on the CVSS scale. 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. EPSS estimates a 0.09% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

6.7/10

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

EPSS Probability

0.09%

0.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-863

Affected Software

Vendor	Product	Versions
Google	Android	11.0
Google	Android	12.0
Google	Android	12.1
Google	Android	13.0

References

https://source.android.com/security/bulletin/2023-05-01Patch, Vendor Advisory
https://source.android.com/security/bulletin/2023-05-01Patch, Vendor Advisory

Timeline

Published: May 15, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-21116?

How severe is CVE-2023-21116?

CVE-2023-21116 has a CVSS score of 6.7/10 (MEDIUM severity). The EPSS model estimates a 0.09% probability of exploitation in the next 30 days.

How do I fix CVE-2023-21116?

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-2023-21116?

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

Scan your code now

Source: NVD / NIST