CVE-2023-21373

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-10-30 · updated 2026-06-17
Weakness: CWE-862

Description

In Telephony, there is a possible way for a guest user to change the preferred 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.

Affected products

Android: 14.0

References

https://source.android.com/docs/security/bulletin/android-14
https://source.android.com/docs/security/bulletin/android-14

Get alerted when CVE-2023-21373 or the next vulnerability affects your stack