What is CVE-2018-9406?

CVE-2018-9406 is a medium-severity vulnerability in Google Android, classified under Missing Authorization. CVSS score: 5.5/10. Published 2025-01-18.

How severe is CVE-2018-9406?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Auth bypass in Google Android

CVE-2018-9406

In NlpService, there is a possible way to obtain location information due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Vulnerability class: Broken Access Control

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

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.001 (0.5th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 0.5% 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-862 — Missing Authorization

References

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

Frequently asked questions

What is CVE-2018-9406?: CVE-2018-9406 is a medium-severity vulnerability in Google Android, classified under Missing Authorization. CVSS score: 5.5/10. Published 2025-01-18.
How severe is CVE-2018-9406?: Medium severity. CVSS v3 base score is 5.5 out of 10.