What’s Vulnerable › Vulnerabilities

CVE-2016-10398

• Severity: medium (CVSS 6.2 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-07-17 · updated 2026-06-17
• Weakness: CWE-264

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.

Affected products

• Android: 6.0

References

• https://homepages.staff.os3.nl/~delaat/rp/2015-2016/p30/report.pdf
• https://homepages.staff.os3.nl/~delaat/rp/2015-2016/p30/report.pdf

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