CVE-2026-72477

Continued filesystem operations via inconsistent inode reuse

Published Aug 15, 2026 · Updated Aug 15, 2026

Improper inode-state handling in Linux 6.17 through 7.1.4 allows attackers to continue operations on an inconsistent NTFS inode. The ntfs3 rename failure path issues WARN_ON but does not mark the live inode bad, leaving later code able to operate on inconsistent state. Triggering the condition requires a failed rename on an NTFS3-mounted filesystem; Linux has not specified the resulting consequence beyond continued inode operations.

CVSS severity9.8
Critical
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper inode-state handling in Linux 6.17 through 7.1.4 allows attackers to continue operations on an inconsistent NTFS inode. The ntfs3 rename failure path issues WARN_ON but does not mark the live inode bad, leaving later code able to operate on inconsistent state. Triggering the condition requires a failed rename on an NTFS3-mounted filesystem; Linux has not specified the resulting consequence beyond continued inode operations.

The record

CVE
CVE-2026-72477
Published
Aug 15, 2026
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 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=519b078998ce6e729f98dccf35505b4756985d11 <e8ed78f40eecd0176fda71d673f6957c98e7ffbe
  2. Affected versionversion=519b078998ce6e729f98dccf35505b4756985d11 <ff825bf0521f6da2f30878cbad18ab7b341bc31b
  3. Affected versionversion=6.17

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=519b078998ce6e729f98dccf35505b4756985d11 <e8ed78f40eecd0176fda71d673f6957c98e7ffbe; version=519b078998ce6e729f98dccf35505b4756985d11 <ff825bf0521f6da2f30878cbad18ab7b341bc31b; version=6.17

Published CVSS scores

9.8OSVCVSS:3.1/AV:N/AC:L/PR:N/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
PrivilegesUnavailable
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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