CVE-2024-26728

Kernel code execution via EDID pointer confusion

Published Apr 3, 2024 · Updated Aug 5, 2026

Type confusion in Linux 6.7 through 6.7.6 allows local users to execute kernel code through a forced HDMI connector probe. When a DCN2.1 HDMI link has no AUX mode, create_eml_sink passes dc_link->ddc->ddc_pin as an i2c_adapter even though it points into monitor EDID data. A user with DRM master access can make i2c_transfer call display-controlled function pointers, causing kernel code execution or an unrecoverable DRM hang.

CVSS severity7.8
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Type confusion in Linux 6.7 through 6.7.6 allows local users to execute kernel code through a forced HDMI connector probe. When a DCN2.1 HDMI link has no AUX mode, create_eml_sink passes dc_link->ddc->ddc_pin as an i2c_adapter even though it points into monitor EDID data. A user with DRM master access can make i2c_transfer call display-controlled function pointers, causing kernel code execution or an unrecoverable DRM hang.

The record

CVE
CVE-2024-26728
Published
Apr 3, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 3, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 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=0e859faf8670a78ce206977dcf1a31a0231e9ca5 <2d392f7268a1a9bfbd98c831f0f4c964e59aa145
  2. Affected versionversion=0e859faf8670a78ce206977dcf1a31a0231e9ca5 <9671761792156f2339627918bafcd713a8a6f777
  3. Affected versionversion=6.7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=0e859faf8670a78ce206977dcf1a31a0231e9ca5 <2d392f7268a1a9bfbd98c831f0f4c964e59aa145; version=0e859faf8670a78ce206977dcf1a31a0231e9ca5 <9671761792156f2339627918bafcd713a8a6f777; version=6.7

Published CVSS scores

7.8Linux kernel CVE teamCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.5Canonical Ubuntu SecurityCVSS: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.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1068Exploitation for Privilege Escalation

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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