CVE-2023-40090

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-12-04 · updated 2026-06-17
Weakness: CWE-203

Description

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

Android: 11.0, 12.0, 12.1, 13.0, 14.0

References

https://android.googlesource.com/platform/packages/modules/Bluetooth/+/495417bd068c35de0729d9a332639bd0699153ff
https://source.android.com/security/bulletin/2023-12-01
https://android.googlesource.com/platform/packages/modules/Bluetooth/+/495417bd068c35de0729d9a332639bd0699153ff
https://source.android.com/security/bulletin/2023-12-01

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