What is CVE-2018-11851?

CVE-2018-11851 is a high-severity vulnerability in Google Android, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2018-09-18.

How severe is CVE-2018-11851?

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

Buffer overflow in Google Android

CVE-2018-11851

In all android releases (Android for MSM, Firefox OS for MSM, QRD Android) from CAF using the linux kernel, lack of check on input received to calculate the buffer length can lead to out of bound write to kernel stack.

Vulnerability class: Buffer Overflow

Published 2018-09-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (9.1th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 9.1% 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
Qualcomm, Inc. Android For Msm, Firefox OS Qrd — versions All Android releases from CAF using the Linux kernel

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

www.codeaurora.org/security-bulletin/2018/09/04/september-2018-code-aurora-secu… (Patch, Third Party Advisory)
source.codeaurora.org/quic/la/platform/vendor/qcom-opensource/wlan/qcacld-3.0/c… (Patch, Third Party Advisory)
www.securityfocus.com/bid/107770 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2018-11851?: CVE-2018-11851 is a high-severity vulnerability in Google Android, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2018-09-18.
How severe is CVE-2018-11851?: High severity. CVSS v3 base score is 7.8 out of 10.