CVE-2015-3864: Google Android

High severity, CVSS 10.0. EPSS: 87.1% chance of exploitation in the next 30 days.

Integer underflow in the MPEG4Extractor::parseChunk function in MPEG4Extractor.cpp in libstagefright in mediaserver in Android before 5.1.1 LMY48M allows remote attackers to execute arbitrary code via crafted MPEG-4 data, aka internal bug 23034759. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-3824.

Affected products

• Google Android: up to and including 5.1

Published 2015-10-01. Last modified 2026-06-17.