CVE-2026-23227

Kernel memory corruption via unlocked Exynos VIDI state

Published Feb 18, 2026 · Updated Feb 18, 2026

Use-after-free in the Linux Kernel Exynos Virtual Display driver allows local users to corrupt kernel memory via concurrent DRM operations. vidi_connection_ioctl can free ctx->raw_edid while vidi_get_modes duplicates it because shared vidi_context members lack ctx->lock protection. Low-privileged local access and an enabled Exynos VIDI driver are required; exploitation can expose or alter kernel data or crash the system.

CVSS severity7.8
High
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

Use-after-free in the Linux Kernel Exynos Virtual Display driver allows local users to corrupt kernel memory via concurrent DRM operations. vidi_connection_ioctl can free ctx->raw_edid while vidi_get_modes duplicates it because shared vidi_context members lack ctx->lock protection. Low-privileged local access and an enabled Exynos VIDI driver are required; exploitation can expose or alter kernel data or crash the system.

The record

CVE
CVE-2026-23227
Published
Feb 18, 2026
Updated
Feb 18, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-416, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 18, 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=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <0cd2c155740dbd00868ac5a8ae5d14cd6b9ed385
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <60b75407c172e1f341a8a5097c5cbc97dbbdd893

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <0cd2c155740dbd00868ac5a8ae5d14cd6b9ed385; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <60b75407c172e1f341a8a5097c5cbc97dbbdd893

Published CVSS scores

7.8kernel.orgCVSS: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-416Use After Free
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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