CVE-2024-53144

Adjacent code execution via silent Bluetooth pairing

Published Dec 17, 2024 · Updated Aug 5, 2026

Improper access control in Linux kernel Bluetooth allows adjacent remote attackers to execute code through unauthenticated Just Works pairing. In hci_user_confirm_request_evt() in net/bluetooth/hci_event.c, the BR/EDR acceptor path auto-accepts pairing when neither side requests MITM protection instead of sending user space a confirmation request with confirm_hint set. An attacker must be within Bluetooth range and advertise compatible I/O and authentication capabilities; successful pairing creates a trusted bond and permits code execution in the current user's context.

CVSS severity5.5
Medium
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Linux kernel Bluetooth allows adjacent remote attackers to execute code through unauthenticated Just Works pairing. In hci_user_confirm_request_evt() in net/bluetooth/hci_event.c, the BR/EDR acceptor path auto-accepts pairing when neither side requests MITM protection instead of sending user space a confirmation request with confirm_hint set. An attacker must be within Bluetooth range and advertise compatible I/O and authentication capabilities; successful pairing creates a trusted bond and permits code execution in the current user's context.

The record

CVE
CVE-2024-53144
Published
Dec 17, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-20, T1203
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 17, 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=039da39a616103ec7ab8ac351bfb317854e5507c
  2. Affected versionversion=3.10.48 <3.11
  3. Affected versionversion=3.12.25 <3.13
  4. Affected versionversion=3.14.12 <3.15
  5. Affected versionversion=3.15.5 <3.16
  6. Affected versionversion=3.16
  7. Affected versionversion=3.2.61 <3.3
  8. Affected versionversion=3.4.98 <3.5
  9. Affected versionversion=373d1dfcffc63c68184419264a7eaed422c7958e
  10. Affected versionversion=6ab84785311dc4d0348e6bd4e1c491293b770b98
  11. Affected versionversion=778763287ded64dd5c022435d3e0e3182f148a64
  12. Affected versionversion=9a5fcacabde0fe11456f4a1e88072c01846cea25
  13. Affected versionversion=ba15a58b179ed76a7e887177f2b06de12c58ec8f <22b49d6e4f399a390c70f3034f5fbacbb9413858
  14. Affected versionversion=ba15a58b179ed76a7e887177f2b06de12c58ec8f <5291ff856d2c5177b4fe9c18828312be30213193
  15. Affected versionversion=ba15a58b179ed76a7e887177f2b06de12c58ec8f <830c03e58beb70b99349760f822e505ecb4eeb7e
  16. Affected versionversion=ba15a58b179ed76a7e887177f2b06de12c58ec8f <ad7adfb95f64a761e4784381e47bee1a362eb30d
  17. Affected versionversion=ba15a58b179ed76a7e887177f2b06de12c58ec8f <b25e11f978b63cb7857890edb3a698599cddb10e
  18. Affected versionversion=ba15a58b179ed76a7e887177f2b06de12c58ec8f <baaa50c6f91ea5a9c7503af51f2bc50e6568b66b
  19. Affected versionversion=ba15a58b179ed76a7e887177f2b06de12c58ec8f <d17c631ba04e960eb6f8728b10d585de20ac4f71
  20. Affected versionversion=bc96ff59b2f19e924d9e15e24cee19723d674b92

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=039da39a616103ec7ab8ac351bfb317854e5507c; version=3.10.48 <3.11; version=3.12.25 <3.13; version=3.14.12 <3.15; version=3.15.5 <3.16; version=3.16; version=3.2.61 <3.3; version=3.4.98 <3.5; version=373d1dfcffc63c68184419264a7eaed422c7958e; version=6ab84785311dc4d0348e6bd4e1c491293b770b98; version=778763287ded64dd5c022435d3e0e3182f148a64; version=9a5fcacabde0fe11456f4a1e88072c01846cea25; version=ba15a58b179ed76a7e887177f2b06de12c58ec8f <22b49d6e4f399a390c70f3034f5fbacbb9413858; version=ba15a58b179ed76a7e887177f2b06de12c58ec8f <5291ff856d2c5177b4fe9c18828312be30213193; version=ba15a58b179ed76a7e887177f2b06de12c58ec8f <830c03e58beb70b99349760f822e505ecb4eeb7e; version=ba15a58b179ed76a7e887177f2b06de12c58ec8f <ad7adfb95f64a761e4784381e47bee1a362eb30d; version=ba15a58b179ed76a7e887177f2b06de12c58ec8f <b25e11f978b63cb7857890edb3a698599cddb10e; version=ba15a58b179ed76a7e887177f2b06de12c58ec8f <baaa50c6f91ea5a9c7503af51f2bc50e6568b66b; version=ba15a58b179ed76a7e887177f2b06de12c58ec8f <d17c631ba04e960eb6f8728b10d585de20ac4f71; version=bc96ff59b2f19e924d9e15e24cee19723d674b92

Published CVSS scores

5.5NVDCVSS: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

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-20Improper Input Validation
T1203Exploitation for Client Execution

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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