What is CVE-2021-39680?

CVE-2021-39680 is a medium-severity vulnerability in Google Android, classified under Use of Uninitialized Resource. CVSS score: 4.4/10. Published 2022-01-14.

How severe is CVE-2021-39680?

Medium severity. CVSS v3 base score is 4.4 out of 10.

Vulnerability in Google Android

CVE-2021-39680

In sec_SHA256_Transform of sha256_core.c, there is a possible way to read heap data due to uninitialized data. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-197965864References: N/A

EPSS: 0.001 (1.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

Affected products

Google Android
N/a Android — versions Android kernel

Weakness classification (CWE)

CWE-908 — Use of Uninitialized Resource

References

security@android.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-39680?: CVE-2021-39680 is a medium-severity vulnerability in Google Android, classified under Use of Uninitialized Resource. CVSS score: 4.4/10. Published 2022-01-14.
How severe is CVE-2021-39680?: Medium severity. CVSS v3 base score is 4.4 out of 10.