CVE-2024-50267

Local kernel compromise via freed command URB dereference

Published Nov 19, 2024 · Updated Aug 5, 2026

Use-after-free in the Linux kernel's io_edgeport USB-serial driver allows local users to crash the kernel or compromise kernel state. The edge_bulk_out_cmd_callback function frees a command URB, then dereferences urb->dev for a debug message when the transfer status is nonzero. Reachability requires an attached Edgeport device and local access to its /dev/ttyUSB node; a failing command transfer can expose kernel memory, corrupt kernel state, or panic the host.

CVSS severity7.8
High
EPSS probability0.28%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in the Linux kernel's io_edgeport USB-serial driver allows local users to crash the kernel or compromise kernel state. The edge_bulk_out_cmd_callback function frees a command URB, then dereferences urb->dev for a debug message when the transfer status is nonzero. Reachability requires an attached Edgeport device and local access to its /dev/ttyUSB node; a failing command transfer can expose kernel memory, corrupt kernel state, or panic the host.

The record

CVE
CVE-2024-50267
Published
Nov 19, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-416, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 19, 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=3.7
  2. Affected versionversion=984f68683298ba53af32f909de1f9452fbb37ccb <13d6ff3ca76056d06a9d88300be2a293442ff595
  3. Affected versionversion=984f68683298ba53af32f909de1f9452fbb37ccb <275258c30bbda29467216e96fb655b16bcc9992b
  4. Affected versionversion=984f68683298ba53af32f909de1f9452fbb37ccb <314bdf446053e123f37543aa535197ee75f8aa97
  5. Affected versionversion=984f68683298ba53af32f909de1f9452fbb37ccb <37bb5628379295c1254c113a407cab03a0f4d0b4
  6. Affected versionversion=984f68683298ba53af32f909de1f9452fbb37ccb <39709ce93f5c3f9eb535efe2afea088805d1128f
  7. Affected versionversion=984f68683298ba53af32f909de1f9452fbb37ccb <44fff2c16c5aafbdb70c7183dae0a415ae74705e
  8. Affected versionversion=984f68683298ba53af32f909de1f9452fbb37ccb <e567fc8f7a4460e486e52c9261b1e8b9f5dc42aa
  9. Affected versionversion=984f68683298ba53af32f909de1f9452fbb37ccb <e6ceb04eeb6115d872d4c4078d12f1170ed755ce

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.7; version=984f68683298ba53af32f909de1f9452fbb37ccb <13d6ff3ca76056d06a9d88300be2a293442ff595; version=984f68683298ba53af32f909de1f9452fbb37ccb <275258c30bbda29467216e96fb655b16bcc9992b; version=984f68683298ba53af32f909de1f9452fbb37ccb <314bdf446053e123f37543aa535197ee75f8aa97; version=984f68683298ba53af32f909de1f9452fbb37ccb <37bb5628379295c1254c113a407cab03a0f4d0b4; version=984f68683298ba53af32f909de1f9452fbb37ccb <39709ce93f5c3f9eb535efe2afea088805d1128f; version=984f68683298ba53af32f909de1f9452fbb37ccb <44fff2c16c5aafbdb70c7183dae0a415ae74705e; version=984f68683298ba53af32f909de1f9452fbb37ccb <e567fc8f7a4460e486e52c9261b1e8b9f5dc42aa; version=984f68683298ba53af32f909de1f9452fbb37ccb <e6ceb04eeb6115d872d4c4078d12f1170ed755ce

Published CVSS scores

7.8Linux kernel CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
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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