CVE-2025-38253

System crash via uncanceled Wacom delayed work

Published Jul 9, 2025 · Updated Aug 5, 2026

A delayed-work teardown flaw in the Linux kernel Wacom HID driver from 6.8 allows local users to crash the system during device removal. wacom_remove() fails to cancel pending aes_battery_work, so wacom_aes_battery_handler() executes after device teardown and triggers a protection fault. Triggering requires a Wacom AES device and removal while battery work remains pending; built-in USB devices can encounter it after hibernation resumes.

CVSS severity8.8
High
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A delayed-work teardown flaw in the Linux kernel Wacom HID driver from 6.8 allows local users to crash the system during device removal. wacom_remove() fails to cancel pending aes_battery_work, so wacom_aes_battery_handler() executes after device teardown and triggers a protection fault. Triggering requires a Wacom AES device and removal while battery work remains pending; built-in USB devices can encounter it after hibernation resumes.

The record

CVE
CVE-2025-38253
Published
Jul 9, 2025
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 9, 2025CVE 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=6.8
  2. Affected versionversion=fd2a9b29dc9c4c35def91d5d1c5b470843539de6 <57a3d82200dbeccd002244b96acad570eeeb731f
  3. Affected versionversion=fd2a9b29dc9c4c35def91d5d1c5b470843539de6 <a4f182ffa30c52ad1c8e12edfb8049ee748c0f1b
  4. Affected versionversion=fd2a9b29dc9c4c35def91d5d1c5b470843539de6 <f3054152c12e2eed1e72704aff47b0ea58229584

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.8; version=fd2a9b29dc9c4c35def91d5d1c5b470843539de6 <57a3d82200dbeccd002244b96acad570eeeb731f; version=fd2a9b29dc9c4c35def91d5d1c5b470843539de6 <a4f182ffa30c52ad1c8e12edfb8049ee748c0f1b; version=fd2a9b29dc9c4c35def91d5d1c5b470843539de6 <f3054152c12e2eed1e72704aff47b0ea58229584

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
8.8kernel.orgCVSS:3.1/AV:A/AC:L/PR:N/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 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

T1499Endpoint Denial of Service

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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