CVE-2024-53214

Host kernel compromise via unchecked capability ID

Published Dec 27, 2024 · Updated Aug 5, 2026

Out-of-bounds array access in Linux VFIO PCI allows local users with an assigned VFIO device to compromise the host kernel. vfio_config_do_rw() uses an unchecked unknown capability ID from pci_config_map to index ecap_perms, then dereferences out-of-bounds permission data. A process must hold the assigned device's /dev/vfio descriptor; successful access exposes kernel memory, permits host-kernel code execution, or crashes the host.

CVSS severity7.8
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds array access in Linux VFIO PCI allows local users with an assigned VFIO device to compromise the host kernel. vfio_config_do_rw() uses an unchecked unknown capability ID from pci_config_map to index ecap_perms, then dereferences out-of-bounds permission data. A process must hold the assigned device's /dev/vfio descriptor; successful access exposes kernel memory, permits host-kernel code execution, or crashes the host.

The record

CVE
CVE-2024-53214
Published
Dec 27, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-129, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 27, 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=3.6
  2. Affected versionversion=89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 <06f2fcf49854ad05a09d09e0dbee6544fff04695
  3. Affected versionversion=89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 <0918f5643fc6c3f7801f4a22397d2cc09ba99207
  4. Affected versionversion=89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 <1ef195178fb552478eb2587df4ad3be14ef76507
  5. Affected versionversion=89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 <4464e5aa3aa4574063640f1082f7d7e323af8eb4
  6. Affected versionversion=89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 <6c6502d944168cbd7e03a4a08ad6488f78d73485
  7. Affected versionversion=89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 <7d121f66b67921fb3b95e0ea9856bfba53733e91
  8. Affected versionversion=89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 <949bee8065a85a5c6607c624dc05b5bc17119699
  9. Affected versionversion=89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 <9567bd34aa3b986736c290c5bcba47e0182ac47a
  10. Affected versionversion=89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 <fe4bf8d0b6716a423b16495d55b35d3fe515905d

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.6; version=89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 <06f2fcf49854ad05a09d09e0dbee6544fff04695; version=89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 <0918f5643fc6c3f7801f4a22397d2cc09ba99207; version=89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 <1ef195178fb552478eb2587df4ad3be14ef76507; version=89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 <4464e5aa3aa4574063640f1082f7d7e323af8eb4; version=89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 <6c6502d944168cbd7e03a4a08ad6488f78d73485; version=89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 <7d121f66b67921fb3b95e0ea9856bfba53733e91; version=89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 <949bee8065a85a5c6607c624dc05b5bc17119699; version=89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 <9567bd34aa3b986736c290c5bcba47e0182ac47a; version=89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 <fe4bf8d0b6716a423b16495d55b35d3fe515905d

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8CISA-ADPCVSS: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

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-129Improper Validation of Array Index
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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