CVE-2023-53454

Kernel crash via freed HID device name

Published Oct 1, 2025 · Updated Oct 1, 2025

Use-after-free in the Linux HID multitouch driver allows physically proximate attackers to crash the system by disconnecting a HID device. The driver allocates input_dev->name against the input device, so devres frees the name during unregistration before a later uevent dereferences it. Reaching the flaw requires physical HID attachment or removal, and the grounded operational consequence is a kernel crash.

CVSS severity8.8
High
EPSS probability0.23%
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 HID multitouch driver allows physically proximate attackers to crash the system by disconnecting a HID device. The driver allocates input_dev->name against the input device, so devres frees the name during unregistration before a later uevent dereferences it. Reaching the flaw requires physical HID attachment or removal, and the grounded operational consequence is a kernel crash.

The record

CVE
CVE-2023-53454
Published
Oct 1, 2025
Updated
Oct 1, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-664
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 1, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 1, 2025Record 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=3.12
  2. Affected versionversion=c08d46aa805ba46d501f610c2448d07bea979780 <15ec7cb55e7d88755aa01d44a7a1015a42bfce86
  3. Affected versionversion=c08d46aa805ba46d501f610c2448d07bea979780 <1d7833db9fd118415dace2ca157bfa603dec9c8c
  4. Affected versionversion=c08d46aa805ba46d501f610c2448d07bea979780 <2763732ec1e68910719c75b6b896e11b6d3d622b
  5. Affected versionversion=c08d46aa805ba46d501f610c2448d07bea979780 <39c70c19456e50dcb3abfe53539220dff0490f1d
  6. Affected versionversion=c08d46aa805ba46d501f610c2448d07bea979780 <4794394635293a3e74591351fff469cea7ad15a2
  7. Affected versionversion=c08d46aa805ba46d501f610c2448d07bea979780 <ac0d389402a6ff9ad92cea02c2d8c711483b91ab
  8. Affected versionversion=c08d46aa805ba46d501f610c2448d07bea979780 <b70ac7849248ec8128fa12f86e3655ba38838f29
  9. Affected versionversion=c08d46aa805ba46d501f610c2448d07bea979780 <dde88ab4e45beb60b217026207aa9c14c88d71ab
  10. Affected versionversion=c08d46aa805ba46d501f610c2448d07bea979780 <df7ca43fe090e1a56c216c8ebc106ef5fd49afc6

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.12; version=c08d46aa805ba46d501f610c2448d07bea979780 <15ec7cb55e7d88755aa01d44a7a1015a42bfce86; version=c08d46aa805ba46d501f610c2448d07bea979780 <1d7833db9fd118415dace2ca157bfa603dec9c8c; version=c08d46aa805ba46d501f610c2448d07bea979780 <2763732ec1e68910719c75b6b896e11b6d3d622b; version=c08d46aa805ba46d501f610c2448d07bea979780 <39c70c19456e50dcb3abfe53539220dff0490f1d; version=c08d46aa805ba46d501f610c2448d07bea979780 <4794394635293a3e74591351fff469cea7ad15a2; version=c08d46aa805ba46d501f610c2448d07bea979780 <ac0d389402a6ff9ad92cea02c2d8c711483b91ab; version=c08d46aa805ba46d501f610c2448d07bea979780 <b70ac7849248ec8128fa12f86e3655ba38838f29; version=c08d46aa805ba46d501f610c2448d07bea979780 <dde88ab4e45beb60b217026207aa9c14c88d71ab; version=c08d46aa805ba46d501f610c2448d07bea979780 <df7ca43fe090e1a56c216c8ebc106ef5fd49afc6

Published CVSS scores

7.8NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8Linux CVE teamCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.6Red HatCVSS:3.1/AV:P/AC:L/PR:N/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.

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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)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-664Improper Control of a Resource Through its Lifetime

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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