CVE-2022-20334

Adjacent Bluetooth service interruption via null-pointer dereference

Published Aug 11, 2022 · Updated Aug 3, 2024

Null-pointer dereference in Android 13 Bluetooth allows remote attackers to crash Bluetooth processes through adjacent radio traffic. Google identifies the affected locus only as Bluetooth; it has not published the function, packet field, or dereference path that mishandles the input. A nearby attacker needs no privileges or user interaction, and successful exploitation interrupts Bluetooth service without reported confidentiality or integrity impact.

CVSS severity6.5
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Null-pointer dereference in Android 13 Bluetooth allows remote attackers to crash Bluetooth processes through adjacent radio traffic. Google identifies the affected locus only as Bluetooth; it has not published the function, packet field, or dereference path that mishandles the input. A nearby attacker needs no privileges or user interaction, and successful exploitation interrupts Bluetooth service without reported confidentiality or integrity impact.

The record

CVE
CVE-2022-20334
Published
Aug 11, 2022
Updated
Aug 3, 2024
Vendor
Google Cloud
Product
Android
Classifications
CWE-476, T1642
Attack vector
adjacent
Privileges
unauthenticated

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 vectoradjacent
Required privilegesunauthenticated

What is affected?

Google Cloud · Androidversion=Android-13

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 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-476NULL Pointer Dereference
T1642Endpoint Denial of Service

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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