CVE-2024-53207

Bluetooth service hang via reentrant destroy callback

Published Dec 27, 2024 · Updated Aug 5, 2026

Improper locking in affected Linux kernel versions allows local users to hang Bluetooth management through local HCI commands. hci_cmd_sync_dequeue runs a pending command's destroy callback while shutdown code holds the HCI device mutex, and completion handlers acquire that mutex again. Reachability requires a trusted Bluetooth management socket with CAP_NET_ADMIN; a successful trigger blocks the command worker and interrupts Bluetooth service.

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

Improper locking in affected Linux kernel versions allows local users to hang Bluetooth management through local HCI commands. hci_cmd_sync_dequeue runs a pending command's destroy callback while shutdown code holds the HCI device mutex, and completion handlers acquire that mutex again. Reachability requires a trusted Bluetooth management socket with CAP_NET_ADMIN; a successful trigger blocks the command worker and interrupts Bluetooth service.

The record

CVE
CVE-2024-53207
Published
Dec 27, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-667, T1499
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Dec 27, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0cc47233af35fb5f10b5e6a027cb4ccd480caf9a
  2. Affected versionversion=19b40ca62607cef78369549d1af091f2fd558931 <c3f594a3473d6429a0bcf2004cb2885368741b79
  3. Affected versionversion=4883296505aa7e4863c6869b689afb6005633b23 <5703fb1d85f653e35b327b14de4db7da239e4fd9
  4. Affected versionversion=6.10.14 <6.11
  5. Affected versionversion=6.11.3 <6.11.11
  6. Affected versionversion=6.12
  7. Affected versionversion=6.6.55 <6.6.64
  8. Affected versionversion=8c3f7943a29145d8a2d8e24893762f7673323eae <6a25ce9b4af6dc26ee2b9c32d6bd37620bf9739e
  9. Affected versionversion=f53e1c9c726d83092167f2226f32bd3b73f26c21 <a66dfaf18fd61bb75ef8cee83db46b2aadf153d0
  10. Affected versionversion=f53e1c9c726d83092167f2226f32bd3b73f26c21 <cac34e44281f1f1bd842adbbcfe3ef9ff0905111

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=0cc47233af35fb5f10b5e6a027cb4ccd480caf9a; version=19b40ca62607cef78369549d1af091f2fd558931 <c3f594a3473d6429a0bcf2004cb2885368741b79; version=4883296505aa7e4863c6869b689afb6005633b23 <5703fb1d85f653e35b327b14de4db7da239e4fd9; version=6.10.14 <6.11; version=6.11.3 <6.11.11; version=6.12; version=6.6.55 <6.6.64; version=8c3f7943a29145d8a2d8e24893762f7673323eae <6a25ce9b4af6dc26ee2b9c32d6bd37620bf9739e; version=f53e1c9c726d83092167f2226f32bd3b73f26c21 <a66dfaf18fd61bb75ef8cee83db46b2aadf153d0; version=f53e1c9c726d83092167f2226f32bd3b73f26c21 <cac34e44281f1f1bd842adbbcfe3ef9ff0905111

Published CVSS scores

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

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-667Improper Locking
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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