What is CVE-2023-20939?

CVE-2023-20939 is a high-severity vulnerability in Google Android, classified under Improper Locking. CVSS score: 7.8/10. Published 2023-02-28.

How severe is CVE-2023-20939?

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

Vulnerability in Google Android

CVE-2023-20939

In multiple functions of looper_backed_event_loop.cpp, there is a possible way to corrupt memory due to improper locking. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12 Android-12L Android-13Android ID: A-243362981

EPSS: 0.001 (0.1th 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 12.0, 12.1, 13.0
N/a Android — versions Android-12 Android-12L Android-13

Weakness classification (CWE)

CWE-667 — Improper Locking

References

security@android.com (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2023-20939?: CVE-2023-20939 is a high-severity vulnerability in Google Android, classified under Improper Locking. CVSS score: 7.8/10. Published 2023-02-28.
How severe is CVE-2023-20939?: High severity. CVSS v3 base score is 7.8 out of 10.