CVE-2026-64278

System hang via powered-down I2C register access

Published Jul 25, 2026 · Updated Jul 25, 2026

Denial of service in the Linux Kernel NXP IMX LPI2C driver allows local users to hang the system during suspend or resume. The driver leaves the I2C adapter available while clock and pinctrl resources are unavailable, so a periodic client workqueue can issue a register transfer against powered-down hardware. An affected NXP IMX controller and a transfer during the suspend or resume window are required, and the resulting consequence is a system hang.

CVSS severity5.5
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in the Linux Kernel NXP IMX LPI2C driver allows local users to hang the system during suspend or resume. The driver leaves the I2C adapter available while clock and pinctrl resources are unavailable, so a periodic client workqueue can issue a register transfer against powered-down hardware. An affected NXP IMX controller and a transfer during the suspend or resume window are required, and the resulting consequence is a system hang.

The record

CVE
CVE-2026-64278
Published
Jul 25, 2026
Updated
Jul 25, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-820, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 25, 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=1ee867e465c1b0216ec02d4c0d334c4e89919cec <218cfe364b55b2768221629bd4a69ad190b7fbbc
  2. Affected versionversion=1ee867e465c1b0216ec02d4c0d334c4e89919cec <5800647d19d3f1f747fda4dc67e55d6afa6ee119
  3. Affected versionversion=1ee867e465c1b0216ec02d4c0d334c4e89919cec <b2523f26979e0b5bd1422772176b2233fcd1f6d0
  4. Affected versionversion=6.14

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=1ee867e465c1b0216ec02d4c0d334c4e89919cec <218cfe364b55b2768221629bd4a69ad190b7fbbc; version=1ee867e465c1b0216ec02d4c0d334c4e89919cec <5800647d19d3f1f747fda4dc67e55d6afa6ee119; version=1ee867e465c1b0216ec02d4c0d334c4e89919cec <b2523f26979e0b5bd1422772176b2233fcd1f6d0; version=6.14

Published CVSS scores

4.7Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-820Missing Synchronization
T1499Endpoint Denial of Service

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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