CVE-2023-21083

Name: CVE-2023-21083
Creator: NVD / NIST
Published: 2023-04-19T20:15:11.303+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.09%

Last modified Jun 17, 2026

CVE-2023-21083 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. In onNullBinding of CallScreeningServiceHelper.java, there is a possible way to record audio without showing a privacy indicator due to a permissions bypass. This could lead to local escalation of privilege with User execution privileges needed. EPSS estimates a 0.09% chance of exploitation in the next 30 days.

Description

In onNullBinding of CallScreeningServiceHelper.java, there is a possible way to record audio without showing a privacy indicator due to a permissions bypass. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-252762941

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.09%

0.7th percentile

Probability of exploitation in the next 30 days. Learn more

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

Timeline

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

Frequently Asked Questions

What is CVE-2023-21083?

How severe is CVE-2023-21083?

CVE-2023-21083 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.09% probability of exploitation in the next 30 days.

How do I fix CVE-2023-21083?

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-2023-21083?

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

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Source: NVD / NIST