What is CVE-2021-39674?

CVE-2021-39674 is a high-severity vulnerability in Google Android, classified under Use After Free. CVSS score: 7.8/10. Published 2022-02-11.

How severe is CVE-2021-39674?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2021-39674 known to be exploited?

8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Use After Free in Google Android

CVE-2021-39674

In btm_sec_connected and btm_sec_disconnected of btm_sec.cc file , there is a possible use after free. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12Android ID: A-201083442

Vulnerability class: Use-After-Free

EPSS: 0.001 (4.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Google Android — versions 10.0, 11.0, 12.0
N/a Android — versions Android-10 Android-11 Android-12

Weakness classification (CWE)

CWE-416 — Use After Free

Public proof-of-concept exploits

References

security@android.com (Patch, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-39674?: CVE-2021-39674 is a high-severity vulnerability in Google Android, classified under Use After Free. CVSS score: 7.8/10. Published 2022-02-11.
How severe is CVE-2021-39674?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2021-39674 known to be exploited?: 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.