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

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.002 (8.7th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 8.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-21125: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

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.