CVE-2024-24859

Service interruption via unlocked Bluetooth interval validation

Published Feb 5, 2024 · Updated May 12, 2026

Race condition in Linux kernel 4.0-rc1 through 6.8-rc1 allows local users to interrupt service through concurrent Bluetooth debugfs writes. The sniff_min_interval_set and sniff_max_interval_set paths validate each proposed boundary before taking hci_dev_lock, so a concurrent change can make the accepted minimum exceed the maximum. Privileged debugfs write access, restricted to root by default on Ubuntu kernels, is required; Siemens also lists all versions of its SIMATIC subsystem as affected.

CVSS severity4.6
Medium
EPSS probability0.71%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in Linux kernel 4.0-rc1 through 6.8-rc1 allows local users to interrupt service through concurrent Bluetooth debugfs writes. The sniff_min_interval_set and sniff_max_interval_set paths validate each proposed boundary before taking hci_dev_lock, so a concurrent change can make the accepted minimum exceed the maximum. Privileged debugfs write access, restricted to root by default on Ubuntu kernels, is required; Siemens also lists all versions of its SIMATIC subsystem as affected.

The record

CVE
CVE-2024-24859
Published
Feb 5, 2024
Updated
May 12, 2026
Vendor
Siemens
Product
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
Classifications
CWE-362, CAPEC-26, T1499
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Feb 5, 2024CVE publishedPublication date reported by the CVE source.
  2. May 12, 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?

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  1. Affected versionversion=0 <*

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Siemens · SIMATIC S7-1500 TM MFP - GNU/Linux subsystemversion=0 <*
The Linux Kernel Organization · Linux Kernelversion=v4.0-rc1 <v6.8-rc2

Published CVSS scores

4.6OpenAnolisCVSS:3.1/AV:A/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:H
4.6Siemens ProductCERTCVSS:3.1/AV:A/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:H
4.8NIST NVDCVSS:3.1/AV:A/AC:H/PR:N/UI:R/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)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CAPEC-26Leveraging Race Conditions
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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