CVE-2022-39177

Bluetooth service interruption via malformed AVDTP capabilities

Published Sep 2, 2022 · Updated Apr 15, 2026

Denial of service in BlueZ before 5.59 allows physically proximate attackers to interrupt Bluetooth services via malformed AVDTP capabilities. The caps_to_list parser in profiles/audio/avdtp.c copied capability records without first validating each declared length and media-codec structure. Bluetooth radio proximity and an AVDTP audio-profile exchange are required; published sources do not specify whether the service hangs or crashes.

CVSS severity8.8
High
EPSS probability0.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in BlueZ before 5.59 allows physically proximate attackers to interrupt Bluetooth services via malformed AVDTP capabilities. The caps_to_list parser in profiles/audio/avdtp.c copied capability records without first validating each declared length and media-codec structure. Bluetooth radio proximity and an AVDTP audio-profile exchange are required; published sources do not specify whether the service hangs or crashes.

The record

CVE
CVE-2022-39177
Published
Sep 2, 2022
Updated
Apr 15, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1499
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 2, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.8Ubuntu Security TeamCVSS:3.1/AV:A/AC:L/PR:N/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 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

T1499Endpoint 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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