What is CVE-2023-21138?

CVE-2023-21138 is a high-severity vulnerability in Google Android, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2023-06-15.

How severe is CVE-2023-21138?

High severity. CVSS v3 base score is 7.8 out of 10.

Improper input validation in Google Android

CVE-2023-21138

In onNullBinding of CallRedirectionProcessor.java, there is a possible long lived connection due to improper input validation. This could lead to local escalation of privilege and background activity launches with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-273260090

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.001 (0.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Google Android — versions 11.0, 12.0, 12.1
N/a Android — versions Android-11 Android-12 Android-12L Android-13

Weakness classification (CWE)

References

security@android.com (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2023-21138?: CVE-2023-21138 is a high-severity vulnerability in Google Android, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2023-06-15.
How severe is CVE-2023-21138?: High severity. CVSS v3 base score is 7.8 out of 10.