CVE-2025-68767Public exploit

Kernel crash via unchecked HFS+ inode mode

Published Jan 13, 2026 · Updated Jan 13, 2026

Improper inode validation in Linux Kernel 2.6.12 and later allows local users to crash the kernel through a crafted HFS+ image. The HFS+ inode loader copies corrupted 16-bit mode type bits into inode->i_mode without checking them against the directory flag or valid file types. Triggering the kernel BUG requires mounting the crafted filesystem and opening an affected inode, interrupting the host.

CVSS severityUnavailable
Unscored
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Improper inode validation in Linux Kernel 2.6.12 and later allows local users to crash the kernel through a crafted HFS+ image. The HFS+ inode loader copies corrupted 16-bit mode type bits into inode->i_mode without checking them against the directory flag or valid file types. Triggering the kernel BUG requires mounting the crafted filesystem and opening an affected inode, interrupting the host.

The record

CVE
CVE-2025-68767
Published
Jan 13, 2026
Updated
Jan 13, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
T1499
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jan 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 13, 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=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <001f44982587ad462b3002ee40c75e8df67d597d
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <005d4b0d33f6b4a23d382b7930f7a96b95b01f39
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <05ec9af3cc430683c97f76027e1c55ac6fd25c59
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <91f114bffa36ce56d0e1f60a0a44fc09baaefc79
  5. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <edfb2e602b5ba5ca6bf31cbac20b366efb72b156

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

The Linux Kernel Organization · Linux Kernelversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <001f44982587ad462b3002ee40c75e8df67d597d; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <005d4b0d33f6b4a23d382b7930f7a96b95b01f39; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <05ec9af3cc430683c97f76027e1c55ac6fd25c59; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <91f114bffa36ce56d0e1f60a0a44fc09baaefc79; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <edfb2e602b5ba5ca6bf31cbac20b366efb72b156

Published CVSS scores

No CVSS assessment is available in this record.

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1499Endpoint Denial of Service

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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