CVE-2022-20552

Local information disclosure via Bluetooth use-after-free

Published Dec 16, 2022 · Updated Apr 18, 2025

Use-after-free in Android 13 Bluetooth allows local users to disclose process memory through an out-of-bounds read in the A2DP sink. btif_a2dp_sink_command_ready accesses a freed heap object while processing sink-command readiness, so the stale reference is read outside its valid lifetime. Exploitation requires local low-privileged execution, needs no user interaction, and affects confidentiality without reported data modification or service interruption.

CVSS severity5.5
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

Use-after-free in Android 13 Bluetooth allows local users to disclose process memory through an out-of-bounds read in the A2DP sink. btif_a2dp_sink_command_ready accesses a freed heap object while processing sink-command readiness, so the stale reference is read outside its valid lifetime. Exploitation requires local low-privileged execution, needs no user interaction, and affects confidentiality without reported data modification or service interruption.

The record

CVE
CVE-2022-20552
Published
Dec 16, 2022
Updated
Apr 18, 2025
Vendor
Google Cloud
Product
Android
Classifications
CWE-416, T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 16, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 18, 2025Record 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-13

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Google Cloud · Androidversion=Android-13

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
5.5CISA-ADPCVSS: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.

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

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-416Use After Free
T1005Data from Local System

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