CVE-2022-20319

Local privilege escalation via DreamServices confused deputy

Published Aug 11, 2022 · Updated Aug 3, 2024

Privilege escalation in Android 13 DreamServices allows local users to launch protected activities through a confused deputy. DreamServices acts with its own authority on an untrusted activity reference, allowing a caller with user execution privileges to start an otherwise protected activity. Exploitation requires local user execution privileges, needs no user interaction, and crosses the caller's authorization boundary.

CVSS severity7.8
High
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in Android 13 DreamServices allows local users to launch protected activities through a confused deputy. DreamServices acts with its own authority on an untrusted activity reference, allowing a caller with user execution privileges to start an otherwise protected activity. Exploitation requires local user execution privileges, needs no user interaction, and crosses the caller's authorization boundary.

The record

CVE
CVE-2022-20319
Published
Aug 11, 2022
Updated
Aug 3, 2024
Vendor
Google Cloud
Product
Android
Classifications
CWE-610, T1626
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 11, 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?

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

7.8NIST NVDCVSS: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-610Externally Controlled Reference to a Resource in Another Sphere
T1626Abuse Elevation Control Mechanism

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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