CVE-2022-20201

Privilege escalation via unchecked getAppSize read

Published Jun 15, 2022 · Updated Aug 3, 2024

Out-of-bounds read in Android 12L InstalldNativeService allows local users with System execution privileges to escalate privileges. The getAppSize function in InstalldNativeService.cpp performs a read without the required bounds check, permitting access beyond the intended buffer. Exploitation requires local System execution privileges but no user interaction; the source does not identify the higher privilege obtained.

CVSS severity6.7
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Out-of-bounds read in Android 12L InstalldNativeService allows local users with System execution privileges to escalate privileges. The getAppSize function in InstalldNativeService.cpp performs a read without the required bounds check, permitting access beyond the intended buffer. Exploitation requires local System execution privileges but no user interaction; the source does not identify the higher privilege obtained.

The record

CVE
CVE-2022-20201
Published
Jun 15, 2022
Updated
Aug 3, 2024
Vendor
Google
Product
Android
Classifications
CWE-125, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jun 15, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=Android-12L

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Google · Androidversion=Android-12L

Published CVSS scores

4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P
6.7NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1068Exploitation 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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo