What is CVE-2017-8256?

CVE-2017-8256 is a high-severity vulnerability in Google Android, classified under Out-of-bounds Read. CVSS score: 7.8/10. Published 2017-08-18.

How severe is CVE-2017-8256?

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

Out-of-bounds Read in Google Android

CVE-2017-8256

In all Qualcomm products with Android releases from CAF using the Linux kernel, array out of bounds access can occur if userspace sends more than 16 multicast addresses.

Vulnerability class: Buffer Overflow

Published 2017-08-18 · last modified 2026-06-17.

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.004 (27.0th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 27.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Google Android
Qualcomm, Inc. All Qualcomm Products — versions All Android releases from CAF using the Linux kernel

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

source.android.com/security/bulletin/2017-07-01 (Patch, Vendor Advisory)
www.securityfocus.com/bid/99465 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2017-8256?: CVE-2017-8256 is a high-severity vulnerability in Google Android, classified under Out-of-bounds Read. CVSS score: 7.8/10. Published 2017-08-18.
How severe is CVE-2017-8256?: High severity. CVSS v3 base score is 7.8 out of 10.