Use After Free Vulnerability in Bluetooth Stack Affects Android Devices
CVE-2023-21125

8HIGH

Key Information:

Vendor

Google
Status
Android
Vendor
CVE Published:
26 August 2025

What is CVE-2023-21125?

A critical use after free vulnerability has been identified in the Bluetooth stack of Android, specifically in the function btif_hh_hsdata_rpt_copy_cb of bta_hh.cc. This flaw allows for potential memory corruption that could enable local privilege escalation via Bluetooth without the need for additional execution privileges or user interaction. Consequently, this vulnerability poses significant security risks for devices running affected versions of Android, necessitating immediate attention and remediation.

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Affected Version(s)

Android 12L

Android 12

References

https://android.googlesource.com/platform/system/bt/+/e7b...
https://source.android.com/security/bulletin/2025-03-01

CVSS V3.1

Score:
8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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