CVE-2023-21285

Cross-user image disclosure via unchecked metadata URI

Published Aug 14, 2023 · Updated Oct 9, 2024

Information disclosure in Android 11 through 13 allows local users to view another user's images through media-session metadata. MediaSessionRecord.setMetadata accepts image URIs in MediaMetadata without verifying that the caller can access them, allowing the system service to act as a confused deputy. An app with ordinary user execution privileges can expose cross-user images without user interaction; no data modification or service interruption is reported.

CVSS severity5.5
Medium
EPSS probability0.18%
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 11 through 13 allows local users to view another user's images through media-session metadata. MediaSessionRecord.setMetadata accepts image URIs in MediaMetadata without verifying that the caller can access them, allowing the system service to act as a confused deputy. An app with ordinary user execution privileges can expose cross-user images without user interaction; no data modification or service interruption is reported.

The record

CVE
CVE-2023-21285
Published
Aug 14, 2023
Updated
Oct 9, 2024
Vendor
Google
Product
Android
Classifications
T1005
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 14, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 9, 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=11
  2. Affected versionversion=12
  3. Affected versionversion=12L
  4. Affected versionversion=13

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Google · Androidversion=11; version=12; version=12L; version=13

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
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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