What is CVE-2019-9453?

CVE-2019-9453 is a medium-severity vulnerability in Google Android, classified under Improper Input Validation. CVSS score: 4.4/10. Published 2019-09-06.

How severe is CVE-2019-9453?

Medium severity. CVSS v3 base score is 4.4 out of 10.

Improper input validation in Google Android

CVE-2019-9453

In the Android kernel in F2FS touch driver there is a possible out of bounds read due to improper input validation. This could lead to local information disclosure with system execution privileges needed. User interaction is not needed for exploitation.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2019-09-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (6.6th percentile), scored 2026-10-07.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 6.6% 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
Canonical Ubuntu Linux — versions 14.04, 16.04
Android — versions Android kernel

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

source.android.com/security/bulletin/pixel/2019-09-01 (Patch, Vendor Advisory)
usn.ubuntu.com/4527-1/ (vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2019-9453?: CVE-2019-9453 is a medium-severity vulnerability in Google Android, classified under Improper Input Validation. CVSS score: 4.4/10. Published 2019-09-06.
How severe is CVE-2019-9453?: Medium severity. CVSS v3 base score is 4.4 out of 10.