What is CVE-2019-9431?

CVE-2019-9431 is a medium-severity vulnerability in Google Android, classified under Out-of-bounds Read. CVSS score: 4.9/10. Published 2019-09-27.

How severe is CVE-2019-9431?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Out-of-bounds Read in Google Android

CVE-2019-9431

In Bluetooth, there is a possible out of bounds read due to a use after free. This could lead to remote information disclosure with heap information written to the log with System execution privileges needed. User interaction is not needed for exploitation. Product: AndroidVersions: Android-10Android ID: A-109755179

Vulnerability class: Buffer Overflow

Published 2019-09-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.007 (51.2th percentile), scored 2026-10-07.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Google Android — versions 10.0
Android — versions Android-10

Weakness classification (CWE)

References

source.android.com/security/bulletin/android-10 (Vendor Advisory)

Frequently asked questions

What is CVE-2019-9431?: CVE-2019-9431 is a medium-severity vulnerability in Google Android, classified under Out-of-bounds Read. CVSS score: 4.9/10. Published 2019-09-27.
How severe is CVE-2019-9431?: Medium severity. CVSS v3 base score is 4.9 out of 10.