CVE-2022-20452

Local privilege escalation via recycled Parcel reference

Published Nov 8, 2022 · Updated May 1, 2025

Confused-deputy code execution in Android 13 Framework allows local users to elevate privileges through a crafted parcel. BaseBundle.initializeFromParcelLocked creates lazy values even when it does not own the Parcel, leaving them to reference storage that another caller can recycle. A low-privileged local process can trigger the condition without user interaction and run code with the deputy's higher privileges.

CVSS severity7.8
High
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Confused-deputy code execution in Android 13 Framework allows local users to elevate privileges through a crafted parcel. BaseBundle.initializeFromParcelLocked creates lazy values even when it does not own the Parcel, leaving them to reference storage that another caller can recycle. A low-privileged local process can trigger the condition without user interaction and run code with the deputy's higher privileges.

The record

CVE
CVE-2022-20452
Published
Nov 8, 2022
Updated
May 1, 2025
Vendor
Google Cloud
Product
Android
Classifications
CWE-276, T1404
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 8, 2022CVE publishedPublication date reported by the CVE source.
  2. May 1, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Android-13

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Google Cloud · Androidversion=Android-13

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-276Incorrect Default Permissions
T1404Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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