CVE-2022-20146

Local private-file disclosure via confused-deputy upload

Published Jun 15, 2022 · Updated Aug 3, 2024

Information disclosure in Android kernel Telephony allows local users to read private files through FileUploadServiceImpl.uploadFile. The uploadFile method performs file access on behalf of a less-privileged caller without preserving the caller's access restrictions, creating a confused deputy. Exploitation requires local low-privileged access but no user interaction, and the documented consequence is limited to disclosure of private files.

CVSS severity5.5
Medium
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Android kernel Telephony allows local users to read private files through FileUploadServiceImpl.uploadFile. The uploadFile method performs file access on behalf of a less-privileged caller without preserving the caller's access restrictions, creating a confused deputy. Exploitation requires local low-privileged access but no user interaction, and the documented consequence is limited to disclosure of private files.

The record

CVE
CVE-2022-20146
Published
Jun 15, 2022
Updated
Aug 3, 2024
Vendor
Google Cloud
Product
Android
Classifications
T1005
Attack vector
local
Privileges
authenticated

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

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Is a vulnerable build present?

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  1. Affected versionversion=Android kernel

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Google Cloud · Androidversion=Android kernel

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
2.1NIST NVDAV:L/AC:L/Au:N/C:P/I:N/A:N

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

Weakness, pattern, technique

T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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