CVE-2023-21021

Name: CVE-2023-21021
Creator: NVD / NIST
Published: 2023-03-24T20:15:13.323+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.09%

Last modified Jun 17, 2026

CVE-2023-21021 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. In isTargetSdkLessThanQOrPrivileged of WifiServiceImpl.java, there is a possible way for the guest user to change admin user network settings due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. EPSS estimates a 0.09% chance of exploitation in the next 30 days.

Description

In isTargetSdkLessThanQOrPrivileged of WifiServiceImpl.java, there is a possible way for the guest user to change admin user network settings due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-255537598

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%

0.5th 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/pixel/2023-03-01Patch, Vendor Advisory
https://source.android.com/security/bulletin/pixel/2023-03-01Patch, Vendor Advisory

Timeline

Published: Mar 24, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-21021?

How severe is CVE-2023-21021?

CVE-2023-21021 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-2023-21021?

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-2023-21021?

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

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Source: NVD / NIST