CVE-2026-46097

Kernel memory access via debugfs use-after-free

Published May 27, 2026 · Updated May 27, 2026

Use-after-free in the Linux Kernel edt-ft5x06 driver allows local users to access freed kernel memory through a debugfs read race. edt_ft5x06_ts_teardown_debugfs() frees tsdata->raw_buffer while the raw_data file remains reachable, allowing its reader to dereference the stale pointer. Exploitation requires permission to read that debugfs file, the affected driver and CONFIG_DEBUGFS, and a read timed with device teardown.

CVSS severity7.8
High
EPSS probability0.14%
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 edt-ft5x06 driver allows local users to access freed kernel memory through a debugfs read race. edt_ft5x06_ts_teardown_debugfs() frees tsdata->raw_buffer while the raw_data file remains reachable, allowing its reader to dereference the stale pointer. Exploitation requires permission to read that debugfs file, the affected driver and CONFIG_DEBUGFS, and a read timed with device teardown.

The record

CVE
CVE-2026-46097
Published
May 27, 2026
Updated
May 27, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-416, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 27, 2026CVE publishedPublication date reported by the CVE source.
  2. May 27, 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=6.17
  2. Affected versionversion=68743c500c6eafcd0b16dc6067fea5bca0795eef <9f6c5e7b747d40e1c65cbfcb975857d25154c075
  3. Affected versionversion=68743c500c6eafcd0b16dc6067fea5bca0795eef <a516d43886623e3cca5fa3446bed8fc7c7982be2
  4. Affected versionversion=68743c500c6eafcd0b16dc6067fea5bca0795eef <f5f9e07060519e2287e99019a6de1eb3ebb65c37

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=6.17; version=68743c500c6eafcd0b16dc6067fea5bca0795eef <9f6c5e7b747d40e1c65cbfcb975857d25154c075; version=68743c500c6eafcd0b16dc6067fea5bca0795eef <a516d43886623e3cca5fa3446bed8fc7c7982be2; version=68743c500c6eafcd0b16dc6067fea5bca0795eef <f5f9e07060519e2287e99019a6de1eb3ebb65c37

Published CVSS scores

7.8NIST NVDCVSS: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.

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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-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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