CVE-2023-53328

Kernel crash via failed NTFS attribute insertion

Published Sep 16, 2025 · Updated Sep 16, 2025

NULL pointer dereference in Linux kernel NTFS3 before 5.15.128, 6.1.47, 6.4.12, and 6.5 allows local users to crash the kernel. The ni_create_attr_list function continued after mi_insert_attr returned NULL because WARN_ON only logged the failed insertion, then dereferenced attr while building an attribute list. Triggering the path requires local access to set an extended attribute on a mounted NTFS volume, and the demonstrated consequence is a kernel oops and service interruption.

CVSS severity5.5
Medium
EPSS probability0.14%
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 Linux kernel NTFS3 before 5.15.128, 6.1.47, 6.4.12, and 6.5 allows local users to crash the kernel. The ni_create_attr_list function continued after mi_insert_attr returned NULL because WARN_ON only logged the failed insertion, then dereferenced attr while building an attribute list. Triggering the path requires local access to set an extended attribute on a mounted NTFS volume, and the demonstrated consequence is a kernel oops and service interruption.

The record

CVE
CVE-2023-53328
Published
Sep 16, 2025
Updated
Sep 16, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2025Record 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=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <4246bbef0442f4a1e974df0ab091f4f33ac69451
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <64fab8bce5237ca225ee1ec9dff5cc8c31b0631f
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e7799bb4dbe26bfb665f29ea87981708fd6012d8
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <fdec309c7672cbee4dc0229ee4cbb33c948a1bdd

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <4246bbef0442f4a1e974df0ab091f4f33ac69451; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <64fab8bce5237ca225ee1ec9dff5cc8c31b0631f; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e7799bb4dbe26bfb665f29ea87981708fd6012d8; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <fdec309c7672cbee4dc0229ee4cbb33c948a1bdd

Published CVSS scores

5.5CISA ADPCVSS: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

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

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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