CVE-2023-21393

Name: CVE-2023-21393
Creator: NVD / NIST
Published: 2023-10-30T18:15:09.767+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.10%

Last modified Jun 17, 2026

CVE-2023-21393 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. In Settings, there is a possible way for the user to change SIM due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. EPSS estimates a 0.10% chance of exploitation in the next 30 days.

Description

In Settings, there is a possible way for the user to change SIM 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.

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

0.10%

1.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-862

Affected Software

Vendor	Product	Versions
Google	Android	< 14.0

References

https://source.android.com/docs/security/bulletin/android-14Release Notes, Vendor Advisory
https://source.android.com/docs/security/bulletin/android-14Release Notes, Vendor Advisory

Timeline

Published: Oct 30, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-21393?

How severe is CVE-2023-21393?

CVE-2023-21393 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.10% probability of exploitation in the next 30 days.

How do I fix CVE-2023-21393?

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-2023-21393?

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

Scan your code now

Source: NVD / NIST