VULNERABILITY INTELLIGENCE

CVE-2016-10398

CVSS score6.2 MEDIUM
EPSS probability0.22%
CISA KEVNot currently listed
Published2017-07-17
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Description

Android 6.0 has an authentication bypass for attackers with root and physical access. Cryptographic authentication tokens (AuthTokens) used by the Trusted Execution Environment (TEE) are protected by a weak challenge. This allows adversaries to replay previously captured responses and use the TEE without authenticating. All apps using authentication-gated cryptography are vulnerable to this attack, which was confirmed on the LG Nexus 5X.

Primary references