CVE-2023-21115

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-06-15 · updated 2026-06-17
Weakness: CWE-327

Description

In btm_sec_encrypt_change of btm_sec.cc, there is a possible way to downgrade the link key type due to improperly used crypto. This could lead to paired device escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12LAndroid ID: A-258834033

Affected products

Android: 11.0, 12.0, 12.1

References

https://source.android.com/security/bulletin/2023-06-01
https://source.android.com/security/bulletin/2023-06-01

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