CVE-2022-20221

Bluetooth information disclosure via unchecked vendor length

Published Jul 13, 2022 · Updated Aug 3, 2024

Out-of-bounds read in Android 10 through 12L allows physically proximate attackers to disclose memory over Bluetooth without interaction. The AVRCP parser extracts a vendor-command length from an undersized packet before confirming that the packet contains that field. Bluetooth proximity is sufficient; no privileges or user interaction are required, and the documented impact is memory disclosure only.

CVSS severity6.5
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Android 10 through 12L allows physically proximate attackers to disclose memory over Bluetooth without interaction. The AVRCP parser extracts a vendor-command length from an undersized packet before confirming that the packet contains that field. Bluetooth proximity is sufficient; no privileges or user interaction are required, and the documented impact is memory disclosure only.

The record

CVE
CVE-2022-20221
Published
Jul 13, 2022
Updated
Aug 3, 2024
Vendor
Google Cloud
Product
Android
Classifications
CWE-125
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 13, 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-10 Android-11 Android-12 Android-12L

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Google Cloud · Androidversion=Android-10 Android-11 Android-12 Android-12L

Published CVSS scores

3.3NVDAV:A/AC:L/Au:N/C:P/I:N/A:N
6.5NVDCVSS:3.1/AV:A/AC:L/PR:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read

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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