What is CVE-2023-21131?

CVE-2023-21131 is a high-severity vulnerability in Google Android, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.8/10. Published 2023-06-15.

How severe is CVE-2023-21131?

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

Auth bypass in Google Android

CVE-2023-21131

In checkKeyIntentParceledCorrectly() of ActivityManagerService.java, there is a possible bypass of Parcel Mismatch mitigations due to a logic error in the code. This could lead to local escalation of privilege and the ability to launch arbitrary activities in settings with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-265015796

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.001 (0.6th 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)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

security@android.com (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2023-21131?: CVE-2023-21131 is a high-severity vulnerability in Google Android, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.8/10. Published 2023-06-15.
How severe is CVE-2023-21131?: High severity. CVSS v3 base score is 7.8 out of 10.