CVE-2023-21115

HIGH

Android 11-12L - Paired Device Privilege Escalation via Link Key Type Downgrade

Title source: llm
STIX 2.1

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

References (1)

Core 1

Scores

CVSS v3 8.8
EPSS 0.0010
EPSS Percentile 1.3%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-327
Status published
Products (3)
google/android 11.0
google/android 12.0
google/android 12.1
Published Jun 15, 2023
Tracked Since Feb 18, 2026