CVE-2012-4221: Google Android

Medium severity, CVSS 6.8. EPSS: 2.1% chance of exploitation in the next 30 days.

Integer overflow in diagchar_core.c in the Qualcomm Innovation Center (QuIC) Diagnostics (aka DIAG) kernel-mode driver for Android 2.3 through 4.2 allows attackers to execute arbitrary code or cause a denial of service via an application that uses crafted arguments in a local diagchar_ioctl call.

Affected products

• Google Android: version 2.3 only; version 2.3.1 only; version 2.3.2 only; version 2.3.3 only; version 2.3.4 only; version 2.3.5 only; …

Published 2012-11-30. Last modified 2026-06-16.