CVE-2026-53401

Local kernel compromise via framebuffer mapping race

Published Jul 19, 2026 · Updated Jul 19, 2026

Use-after-free in Linux Kernel 2.6.36 through 7.1.2 allows local users to map freed OMAP framebuffer physical memory. The omapfb_mmap function reads an address and length through ofbi after a concurrent OMAPFB_SETUP_PLANE ioctl can replace its region, then increments the old region's map count. Access to the OMAP framebuffer device is required to race mmap and setup ioctls, enabling information disclosure, privilege escalation, or arbitrary code execution.

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

Use-after-free in Linux Kernel 2.6.36 through 7.1.2 allows local users to map freed OMAP framebuffer physical memory. The omapfb_mmap function reads an address and length through ofbi after a concurrent OMAPFB_SETUP_PLANE ioctl can replace its region, then increments the old region's map count. Access to the OMAP framebuffer device is required to race mmap and setup ioctls, enabling information disclosure, privilege escalation, or arbitrary code execution.

The record

CVE
CVE-2026-53401
Published
Jul 19, 2026
Updated
Jul 19, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-825, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 19, 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=0 <7.1.3
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6eb6ebcc8590007ad59ddccc8b5f9201655b33f8
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <7958e67375aa111522086286bba13cfc0816ce8d

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=0 <7.1.3; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6eb6ebcc8590007ad59ddccc8b5f9201655b33f8; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <7958e67375aa111522086286bba13cfc0816ce8d

Published CVSS scores

7.8LinuxCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-825Expired Pointer Dereference
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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