What is CVE-2022-42534?

CVE-2022-42534 is a high-severity vulnerability in Google Android, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2022-12-16.

How severe is CVE-2022-42534?

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

Improper input validation in Google Android

CVE-2022-42534

In trusty_ffa_mem_reclaim of shared-mem-smcall.c, there is a possible privilege escalation 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 kernelAndroid ID: A-237838301References: N/A

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

Published 2022-12-16 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.002 (6.4th percentile), scored 2026-10-04.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Google Android
Android — versions Android kernel

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

source.android.com/security/bulletin/pixel/2022-12-01 (Vendor Advisory)

Frequently asked questions

What is CVE-2022-42534?: CVE-2022-42534 is a high-severity vulnerability in Google Android, classified under Improper Input Validation. CVSS score: 7.8/10. Published 2022-12-16.
How severe is CVE-2022-42534?: High severity. CVSS v3 base score is 7.8 out of 10.