What is CVE-2021-39620?

CVE-2021-39620 is a high-severity vulnerability in Google Android, classified under Use After Free. CVSS score: 7.8/10. Published 2022-01-14.

How severe is CVE-2021-39620?

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

Use After Free in Google Android

CVE-2021-39620

In ipcSetDataReference of Parcel.cpp, there is a possible way to corrupt memory due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12Android ID: A-203847542

Vulnerability class: Use-After-Free

EPSS: 0.001 (2.1th 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 11.0, 12.0
N/a Android — versions Android-11 Android-12

Weakness classification (CWE)

CWE-416 — Use After Free

References

security@android.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-39620?: CVE-2021-39620 is a high-severity vulnerability in Google Android, classified under Use After Free. CVSS score: 7.8/10. Published 2022-01-14.
How severe is CVE-2021-39620?: High severity. CVSS v3 base score is 7.8 out of 10.