CVE-2023-26607Public exploit

Kernel-memory disclosure via premature NTFS attribute dereference

Published Feb 26, 2023 · Updated May 5, 2025

Out-of-bounds read in the Linux kernel NTFS driver 6.0.8 allows local users to disclose kernel memory through a crafted NTFS image. ntfs_attr_find dereferences an attribute record's name offset and length before confirming that the record header lies within the MFT record bounds. Exploitation requires local access sufficient to mount the crafted filesystem and can expose kernel memory or crash the system.

CVSS severity7.1
High
EPSS probability0.61%
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 NTFS driver 6.0.8 allows local users to disclose kernel memory through a crafted NTFS image. ntfs_attr_find dereferences an attribute record's name offset and length before confirming that the record header lies within the MFT record bounds. Exploitation requires local access sufficient to mount the crafted filesystem and can expose kernel memory or crash the system.

The record

CVE
CVE-2023-26607
Published
Feb 26, 2023
Updated
May 5, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-125
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Feb 26, 2023CVE publishedPublication date reported by the CVE source.
  2. May 5, 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 privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.1CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
7.1NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-125Out-of-bounds Read

Public exploit references

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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