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CVE-2022-20474

HighPublished

In readLazyValue of Parcel.java, there is a possible loading of arbitrary code into the System Settings app due to a confused deputy. This could lead to...

Published: Dec 13, 2022
Updated: Apr 22, 2025
Assigning CNA: google_android
Evidence observed: Aug 8, 2026

Primary CVSS

7.8/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS probability estimate

0.2%

Low · next 30 days

Percentile: 15.3%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

In readLazyValue of Parcel.java, there is a possible loading of arbitrary code into the System Settings app due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12 Android-12L Android-13Android ID: A-240138294

Sources

CVE-2022-20474PoC
Detailed technical analysis and proof-of-concept for Android CVE-2022-20474, a Bundle mismatch vulnerability exploiting LazyValue with negative length to achieve self-changing Bundle behavior.
LeakValueExploit
Exploit for CVE-2022-20452, privilege escalation on Android from installed app to system app (or another app) via LazyValue using Parcel after recycle()

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