CVE-2022-48424

Kernel memory disclosure via unchecked NTFS attribute offset

Published Mar 19, 2023 · Updated Feb 27, 2025

Out-of-bounds read in the Linux kernel NTFS3 driver before 6.1.3 allows local users to disclose kernel memory through a crafted NTFS attribute. In fs/ntfs3/inode.c, ntfs_read_mft trusts the on-disk attribute name offset and length without ensuring their sum stays within the attribute record. Reaching the flaw requires low-privileged local access and processing a malformed NTFS filesystem; the invalid kernel read exposes memory or triggers a page fault.

CVSS severity7.8
High
EPSS probability0.27%
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 read in the Linux kernel NTFS3 driver before 6.1.3 allows local users to disclose kernel memory through a crafted NTFS attribute. In fs/ntfs3/inode.c, ntfs_read_mft trusts the on-disk attribute name offset and length without ensuring their sum stays within the attribute record. Reaching the flaw requires low-privileged local access and processing a malformed NTFS filesystem; the invalid kernel read exposes memory or triggers a page fault.

The record

CVE
CVE-2022-48424
Published
Mar 19, 2023
Updated
Feb 27, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 19, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 27, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8UbuntuCVSS: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

No sourced classifications are available.

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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