CVE-2023-40090: Google Android

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

In BTM_BleVerifySignature of btm_ble.cc, there is a possible way to bypass signature validation due to side channel information disclosure. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Affected products

• Google Android: version 11.0 only; version 12.0 only; version 12.1 only; version 13.0 only; version 14.0 only

Published 2023-12-04. Last modified 2026-06-17.