CVE-2025-68755

Kernel crash via MOST I2C probe

Published Jan 5, 2026 · Updated Jan 5, 2026

NULL pointer dereference in the Linux Kernel MOST I2C driver allows attackers to crash the kernel by triggering a device probe. The probe path registers its MOST interface without first setting the required interface device pointer, so registration dereferences NULL. Reachability requires the staging MOST I2C driver to be present and probed; the published record establishes no remote trigger or broader impact.

CVSS severityUnavailable
Unscored
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in the Linux Kernel MOST I2C driver allows attackers to crash the kernel by triggering a device probe. The probe path registers its MOST interface without first setting the required interface device pointer, so registration dereferences NULL. Reachability requires the staging MOST I2C driver to be present and probed; the published record establishes no remote trigger or broader impact.

The record

CVE
CVE-2025-68755
Published
Jan 5, 2026
Updated
Jan 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
T1499.004
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Jan 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 5, 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=5.6
  2. Affected versionversion=723de0f9171eeb49a3ae98cae82ebbbb992b3a7c <495df2da6944477d282d5cc0c13174d06e25b310
  3. Affected versionversion=723de0f9171eeb49a3ae98cae82ebbbb992b3a7c <6059a66dba7f26b21852831432e17075f1a1c783
  4. Affected versionversion=723de0f9171eeb49a3ae98cae82ebbbb992b3a7c <e463548fd80e779efea1cb2d3049b8a7231e6925

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linux Kernelversion=5.6; version=723de0f9171eeb49a3ae98cae82ebbbb992b3a7c <495df2da6944477d282d5cc0c13174d06e25b310; version=723de0f9171eeb49a3ae98cae82ebbbb992b3a7c <6059a66dba7f26b21852831432e17075f1a1c783; version=723de0f9171eeb49a3ae98cae82ebbbb992b3a7c <e463548fd80e779efea1cb2d3049b8a7231e6925

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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

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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