What is CVE-2021-0921?

CVE-2021-0921 is a high-severity vulnerability in Google Android, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2021-12-15.

How severe is CVE-2021-0921?

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

Improper input validation in Google Android

CVE-2021-0921

In ParsingPackageImpl of ParsingPackageImpl.java, there is a possible parcel serialization/deserialization mismatch due to improper input validation. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-195962697

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.001 (2.8th 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
N/a Android — versions Android-11

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

security@android.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-0921?: CVE-2021-0921 is a high-severity vulnerability in Google Android, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2021-12-15.
How severe is CVE-2021-0921?: High severity. CVSS v3 base score is 7.8 out of 10.