Use After Free in Google Android
CVE-2023-21125
In btif_hh_hsdata_rpt_copy_cb of bta_hh.cc, there is a possible way to corrupt memory due to a use after free. This could lead to local escalation of privilege over Bluetooth with no additional execution privileges needed. User interaction is not needed for exploitation.
Vulnerability class: Use-After-Free
EPSS: 0.002 (9.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Google Android — versions 12, 12L, 12.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@android.com (Product)
- security@android.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-21125?
- CVE-2023-21125 is a high-severity vulnerability in Google Android, classified under Use After Free. CVSS score: 8.0/10. Published 2025-08-26.
- How severe is CVE-2023-21125?
- High severity. CVSS v3 base score is 8.0 out of 10.
- Is CVE-2023-21125 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.