What is CVE-2021-39806?

CVE-2021-39806 is a high-severity vulnerability in Google Android, classified under Double Free. CVSS score: 7.8/10. Published 2022-06-15.

How severe is CVE-2021-39806?

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

Double Free in Google Android

CVE-2021-39806

In closef of label_backends_android.c, there is a possible way to corrupt memory due to a double free. This could lead to local escalation of privilege during startup of servicemanager, if an attacker can trigger an initialization failure, with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-12LAndroid ID: A-215387420

Vulnerability class: Double Free

EPSS: 0.001 (1.2th 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 12.1
N/a Android — versions Android-12L

Weakness classification (CWE)

CWE-415 — Double Free

References

security@android.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-39806?: CVE-2021-39806 is a high-severity vulnerability in Google Android, classified under Double Free. CVSS score: 7.8/10. Published 2022-06-15.
How severe is CVE-2021-39806?: High severity. CVSS v3 base score is 7.8 out of 10.