CVE-2025-39824Public exploit

Kernel-memory corruption via freed HID input device

Published Sep 16, 2025 · Updated Sep 16, 2025

Use-after-free in the Linux ASUS HID driver allows physically proximate attackers to corrupt kernel memory via a crafted HID descriptor. In hidinput_connect(), an undefined usage page leaves capability bitmaps empty, so hidinput_has_been_populated() frees the input device before asus_probe writes its name. Physical attachment of a malicious HID device with the crafted descriptor is required; the demonstrated consequence is a kernel-memory write to freed storage.

CVSS severity7.0
High
EPSS probability0.16%
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 ASUS HID driver allows physically proximate attackers to corrupt kernel memory via a crafted HID descriptor. In hidinput_connect(), an undefined usage page leaves capability bitmaps empty, so hidinput_has_been_populated() frees the input device before asus_probe writes its name. Physical attachment of a malicious HID device with the crafted descriptor is required; the demonstrated consequence is a kernel-memory write to freed storage.

The record

CVE
CVE-2025-39824
Published
Sep 16, 2025
Updated
Sep 16, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1200
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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=4.10
  2. Affected versionversion=9ce12d8be12c94334634dd57050444910415e45f <5f3c0839b173f7f33415eb098331879e547d1d2d
  3. Affected versionversion=9ce12d8be12c94334634dd57050444910415e45f <7170122e2ae4ab378c9cdf7cc54dea8b0abbbca5
  4. Affected versionversion=9ce12d8be12c94334634dd57050444910415e45f <72a4ec018c9e9bc52f4f80eb3afb5d6a6b752275
  5. Affected versionversion=9ce12d8be12c94334634dd57050444910415e45f <9a9e4a8317437bf944fa017c66e1e23a0368b5c7
  6. Affected versionversion=9ce12d8be12c94334634dd57050444910415e45f <a8ca8fe7f516d27ece3afb995c3bd4d07dcbe62c
  7. Affected versionversion=9ce12d8be12c94334634dd57050444910415e45f <c0d77e3441a92d0b4958193c9ac1c3f81c6f1d1c
  8. Affected versionversion=9ce12d8be12c94334634dd57050444910415e45f <d3af6ca9a8c34bbd8cff32b469b84c9021c9e7e4
  9. Affected versionversion=9ce12d8be12c94334634dd57050444910415e45f <eaae728e7335b5dbad70966e2bd520a731fdf7b2

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.10; version=9ce12d8be12c94334634dd57050444910415e45f <5f3c0839b173f7f33415eb098331879e547d1d2d; version=9ce12d8be12c94334634dd57050444910415e45f <7170122e2ae4ab378c9cdf7cc54dea8b0abbbca5; version=9ce12d8be12c94334634dd57050444910415e45f <72a4ec018c9e9bc52f4f80eb3afb5d6a6b752275; version=9ce12d8be12c94334634dd57050444910415e45f <9a9e4a8317437bf944fa017c66e1e23a0368b5c7; version=9ce12d8be12c94334634dd57050444910415e45f <a8ca8fe7f516d27ece3afb995c3bd4d07dcbe62c; version=9ce12d8be12c94334634dd57050444910415e45f <c0d77e3441a92d0b4958193c9ac1c3f81c6f1d1c; version=9ce12d8be12c94334634dd57050444910415e45f <d3af6ca9a8c34bbd8cff32b469b84c9021c9e7e4; version=9ce12d8be12c94334634dd57050444910415e45f <eaae728e7335b5dbad70966e2bd520a731fdf7b2

Published CVSS scores

7.0UbuntuCVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.8UbuntuCVSS: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)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1200Hardware Additions

Public exploit references

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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