CVE-2016-3893

MEDIUM

Qualcomm sound codec - Info Disclosure

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2016-3893. PoCs published by ScottyBauer.

AI-analyzed exploit summary This PoC exploits CVE-2016-3893, a vulnerability in the Android kernel's WCD9XXX audio driver. It triggers an arbitrary write via a crafted ioctl call with an invalid buffer pointer, leading to potential privilege escalation.

Description

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.

Exploits (1)

github WORKING POC 682 stars
by ScottyBauer · cpoc
https://github.com/ScottyBauer/Android_Kernel_CVE_POCs/tree/master/CVE-2016-3893.c

This PoC exploits CVE-2016-3893, a vulnerability in the Android kernel's WCD9XXX audio driver. It triggers an arbitrary write via a crafted ioctl call with an invalid buffer pointer, leading to potential privilege escalation.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: Android Kernel (WCD9XXX audio driver)
No auth needed
Prerequisites: Access to the target device · Presence of vulnerable WCD9XXX audio driver
devstral-2 · analyzed Feb 27, 2026 Full analysis →

References (4)

Core 4
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1036763
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/92884

Scores

CVSS v3 5.5
EPSS 0.0050
EPSS Percentile 38.5%
Attack Vector LOCAL
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Details

CWE
CWE-200
Status published
Products (1)
google/android < 7.0
Published Sep 11, 2016
Tracked Since Feb 18, 2026