What is CVE-2018-9401?

CVE-2018-9401 is a high-severity vulnerability in Google Android, classified under Incorrect Default Permissions. CVSS score: 7.8/10. Published 2025-01-18.

How severe is CVE-2018-9401?

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

Vulnerability in Google Android

CVE-2018-9401

In many locations, there is a possible way to access kernel memory in user space due to an incorrect bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Published 2025-01-18 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.001 (0.6th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 0.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000

Affected products

Google Android — versions Android Kernel

Weakness classification (CWE)

CWE-276 — Incorrect Default Permissions

References

source.android.com/security/bulletin/pixel/2018-06-01 (Vendor Advisory)

Frequently asked questions

What is CVE-2018-9401?: CVE-2018-9401 is a high-severity vulnerability in Google Android, classified under Incorrect Default Permissions. CVSS score: 7.8/10. Published 2025-01-18.
How severe is CVE-2018-9401?: High severity. CVSS v3 base score is 7.8 out of 10.