CVE-2024-50078

Local privilege escalation via stale Bluetooth registrations

Published Oct 29, 2024 · Updated Aug 5, 2026

Use-after-free in the Bluetooth subsystem of affected Linux kernels from 6.0 allows local users to gain kernel privileges after module unload. The Bluetooth exit path omits iso_exit(), leaving protocol-list and /proc/net/iso callbacks pointing into freed module memory that can be read or invoked after reload. Exploitation requires a prior Bluetooth module unload; an unprivileged local user can then trigger autoload and obtain kernel read, write, and control-flow primitives.

CVSS severity7.8
High
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in the Bluetooth subsystem of affected Linux kernels from 6.0 allows local users to gain kernel privileges after module unload. The Bluetooth exit path omits iso_exit(), leaving protocol-list and /proc/net/iso callbacks pointing into freed module memory that can be read or invoked after reload. Exploitation requires a prior Bluetooth module unload; an unprivileged local user can then trigger autoload and obtain kernel read, write, and control-flow primitives.

The record

CVE
CVE-2024-50078
Published
Oct 29, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 29, 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=6.0
  2. Affected versionversion=ccf74f2390d60a2f9a75ef496d2564abb478f46a <05f84d86169b2ebac185c5736a256823d42c425b
  3. Affected versionversion=ccf74f2390d60a2f9a75ef496d2564abb478f46a <4af7ba39a1a02e16ee8cd0d3b6c6657f51b8ad7a
  4. Affected versionversion=ccf74f2390d60a2f9a75ef496d2564abb478f46a <d458cd1221e9e56da3b2cc5518ad3225caa91f20
  5. Affected versionversion=ccf74f2390d60a2f9a75ef496d2564abb478f46a <f905a7d95091e0d2605a3a1a157a9351f09ab2e1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.0; version=ccf74f2390d60a2f9a75ef496d2564abb478f46a <05f84d86169b2ebac185c5736a256823d42c425b; version=ccf74f2390d60a2f9a75ef496d2564abb478f46a <4af7ba39a1a02e16ee8cd0d3b6c6657f51b8ad7a; version=ccf74f2390d60a2f9a75ef496d2564abb478f46a <d458cd1221e9e56da3b2cc5518ad3225caa91f20; version=ccf74f2390d60a2f9a75ef496d2564abb478f46a <f905a7d95091e0d2605a3a1a157a9351f09ab2e1

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.8Linux Kernel CVE TeamCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.5CISACVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1068Exploitation for Privilege Escalation

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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