CVE-2026-68219

Local kernel memory corruption via unchecked downscaling

Published Aug 10, 2026 · Updated Aug 10, 2026

Out-of-bounds DMA access in the Linux NXP Image Sensor Interface driver allows local users to corrupt kernel memory and hang imaging. The format and selection handlers accept output dimensions below the hardware's one-sixteenth scaling limit, so the scaler writes a larger frame than the destination buffer can hold. Access to the ISI V4L2 device node is required; a crafted ioctl sequence can disclose or overwrite adjacent kernel memory, wedge the channel, or panic the system.

CVSS severity7.8
High
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

Out-of-bounds DMA access in the Linux NXP Image Sensor Interface driver allows local users to corrupt kernel memory and hang imaging. The format and selection handlers accept output dimensions below the hardware's one-sixteenth scaling limit, so the scaler writes a larger frame than the destination buffer can hold. Access to the ISI V4L2 device node is required; a crafted ioctl sequence can disclose or overwrite adjacent kernel memory, wedge the channel, or panic the system.

The record

CVE
CVE-2026-68219
Published
Aug 10, 2026
Updated
Aug 10, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-125, T1499.004
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.4
  2. Affected versionversion=cf21f328fcafacf4f96e7a30ef9dceede1076378 <28ae75dba701d7aa69a36802c398582933d3e0e6
  3. Affected versionversion=cf21f328fcafacf4f96e7a30ef9dceede1076378 <57a7ec5c9f38ce6c4d6209c4b75c8e57e1fea6cf
  4. Affected versionversion=cf21f328fcafacf4f96e7a30ef9dceede1076378 <690cdda752f3dc6b7a8b2d4a243e0207b66a1f37
  5. Affected versionversion=cf21f328fcafacf4f96e7a30ef9dceede1076378 <75cdfaa7c908ca06d564170da9c80fb579f149a5
  6. Affected versionversion=cf21f328fcafacf4f96e7a30ef9dceede1076378 <ba7e1b06cbdad3b7c3314390cca22aff42f655d4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=6.4; version=cf21f328fcafacf4f96e7a30ef9dceede1076378 <28ae75dba701d7aa69a36802c398582933d3e0e6; version=cf21f328fcafacf4f96e7a30ef9dceede1076378 <57a7ec5c9f38ce6c4d6209c4b75c8e57e1fea6cf; version=cf21f328fcafacf4f96e7a30ef9dceede1076378 <690cdda752f3dc6b7a8b2d4a243e0207b66a1f37; version=cf21f328fcafacf4f96e7a30ef9dceede1076378 <75cdfaa7c908ca06d564170da9c80fb579f149a5; version=cf21f328fcafacf4f96e7a30ef9dceede1076378 <ba7e1b06cbdad3b7c3314390cca22aff42f655d4

Published CVSS scores

5.5Red HatCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.8Linux kernel CNACVSS:3.1/AV:L/AC:L/PR:L/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.

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

CWE-125Out-of-bounds Read
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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