CVE-2022-48425

System crash via malformed MFT directory flag

Published Mar 19, 2023 · Updated Feb 26, 2025

Invalid free in the Linux kernel through 6.2.7 allows local users to crash the system via a crafted NTFS filesystem image. During mount-time log replay, ntfs_read_mft trusts RECORD_FLAG_DIR on the $MFT record, treats it as a directory, and later frees directory resources that were never allocated. The image must be mounted with ntfs3 and log replay must process the malformed $MFT record; the documented consequence is a system crash.

CVSS severity7.8
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Invalid free in the Linux kernel through 6.2.7 allows local users to crash the system via a crafted NTFS filesystem image. During mount-time log replay, ntfs_read_mft trusts RECORD_FLAG_DIR on the $MFT record, treats it as a directory, and later frees directory resources that were never allocated. The image must be mounted with ntfs3 and log replay must process the malformed $MFT record; the documented consequence is a system crash.

The record

CVE
CVE-2022-48425
Published
Mar 19, 2023
Updated
Feb 26, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 19, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 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

7.8NIST NVDCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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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