What is CVE-2016-3893?

CVE-2016-3893 is a medium-severity vulnerability in Google Android, classified under Information Disclosure. CVSS score: 5.5/10. Published 2016-09-11.

How severe is CVE-2016-3893?

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

Information disclosure in Google Android

CVE-2016-3893

The wcdcal_hwdep_ioctl_shared function in sound/soc/codecs/wcdcal-hwdep.c in the Qualcomm sound codec in Android before 2016-09-05 on Nexus 6P devices does not properly copy firmware data, which allows attackers to obtain sensitive information via a crafted application, aka Android internal bug 29512527 and Qualcomm internal bug CR856400.

Vulnerability class: Information Disclosure

Published 2016-09-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.005 (40.3th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Google Android

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

source.android.com/security/bulletin/2016-09-01.html (Vendor Advisory)
www.securitytracker.com/id/1036763 (vdb-entry)
www.securityfocus.com/bid/92884 (vdb-entry)
source.codeaurora.org/quic/la/kernel/msm-3.10/commit/ (Patch, Issue Tracking)

Frequently asked questions

What is CVE-2016-3893?: CVE-2016-3893 is a medium-severity vulnerability in Google Android, classified under Information Disclosure. CVSS score: 5.5/10. Published 2016-09-11.
How severe is CVE-2016-3893?: Medium severity. CVSS v3 base score is 5.5 out of 10.