CVE-2024-27060

System crash via absent Thunderbolt lane check

Published May 1, 2024 · Updated May 11, 2026

NULL pointer dereference in the Linux Thunderbolt driver 6.7 allows physically proximate attackers to crash the kernel via device hot-plug. tb_port_do_update_credits() assumes a second lane adapter exists and reads its credit data through a null port when a Thunderbolt 1 device exposes only lane 0. Physical access and a one-lane Thunderbolt 1 device are required, and the reported consequence is a kernel crash.

CVSS severity5.5
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in the Linux Thunderbolt driver 6.7 allows physically proximate attackers to crash the kernel via device hot-plug. tb_port_do_update_credits() assumes a second lane adapter exists and reads its credit data through a null port when a Thunderbolt 1 device exposes only lane 0. Physical access and a one-lane Thunderbolt 1 device are required, and the reported consequence is a kernel crash.

The record

CVE
CVE-2024-27060
Published
May 1, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499.004
Attack vector
physical
Privileges
Unavailable

Timeline

How it unfolded

  1. May 1, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=6.7
  2. Affected versionversion=81af2952e60603d12415e1a6fd200f8073a2ad8b <ce64ba1f6ec3439e4b4d880b4db99673f4507228
  3. Affected versionversion=81af2952e60603d12415e1a6fd200f8073a2ad8b <d3d17e23d1a0d1f959b4fa55b35f1802d9c584fa
  4. Affected versionversion=9b6933e9bddc04655a894c74cd5c62202a5e3d89 <440fba897c5ae32d7df1f1d609dbb19e2bba7fbb

What conditions does exploitation require?

Attack vectorphysical
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=6.7; version=81af2952e60603d12415e1a6fd200f8073a2ad8b <ce64ba1f6ec3439e4b4d880b4db99673f4507228; version=81af2952e60603d12415e1a6fd200f8073a2ad8b <d3d17e23d1a0d1f959b4fa55b35f1802d9c584fa; version=9b6933e9bddc04655a894c74cd5c62202a5e3d89 <440fba897c5ae32d7df1f1d609dbb19e2bba7fbb

Published CVSS scores

5.5NIST NVDCVSS: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)
Vectorphysical
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

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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