ntfs: validate index block header more strictly

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-72206
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-15 06:21:39 UTC
Updated2026-08-18 07:16:53 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: ntfs: validate index block header more strictly Modify ntfs_index_block_inconsisent() to perform stricter validation of INDEX_HEADER geometry in INDX blocks, and update ntfs_lookup_inode_by_name() to use that function to validate INDX blocks.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.005160000 probability, percentile 0.415500000 (date 2026-08-17)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 1e9ea7e04472d4e5e12e58c881eaacfb3e49b669 34a49b3e94a50f45b62c6e6f574f676a079ba23e git Not specified
CNA Linux Linux affected 1e9ea7e04472d4e5e12e58c881eaacfb3e49b669 14bc34fe948523dc2b0174691f9af9e74eb4f3fd git Not specified
CNA Linux Linux affected 7.1 Not specified
CNA Linux Linux unaffected 7.1 semver Not specified
CNA Linux Linux unaffected 7.1.5 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/34a49b3e94a50f45b62c6e6f574f676a079ba23e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/14bc34fe948523dc2b0174691f9af9e74eb4f3fd 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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