What is CVE-2023-40109?

CVE-2023-40109 is a high-severity vulnerability in Google Android, classified under Incorrect Privilege Assignment. CVSS score: 7.8/10. Published 2024-02-15.

How severe is CVE-2023-40109?

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

Is CVE-2023-40109 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Privilege escalation in Google Android

CVE-2023-40109

In createFromParcel of UsbConfiguration.java, there is a possible background activity launch (BAL) due to a permissions bypass. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.

Published 2024-02-15 · last modified 2026-06-17.

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.002 (7.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 7.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Google Android — versions 12, 11.0, 14.0

Weakness classification (CWE)

CWE-266 — Incorrect Privilege Assignment

Public proof-of-concept exploits

References

android.googlesource.com/platform/frameworks/base/+/387d258cf10a30537fc48dc0e48… (Patch, Mailing List)
source.android.com/security/bulletin/2023-11-01 (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2023-40109?: CVE-2023-40109 is a high-severity vulnerability in Google Android, classified under Incorrect Privilege Assignment. CVSS score: 7.8/10. Published 2024-02-15.
How severe is CVE-2023-40109?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2023-40109 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.