CVE-2023-54207

Freed-memory access via mis-scoped input name

Published Dec 30, 2025 · Updated Dec 30, 2025

A use-after-free in the Linux kernel HID uclogic driver allows physically proximate attackers to access freed memory through a device uevent. The driver allocates input_dev.name with devres tied to input_dev rather than the HID device, so unregistration frees the name before a later uevent reads it. Reachability requires a supported uclogic HID device and a uevent after its input device is unregistered; published sources specify no concrete exploit outcome.

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

A use-after-free in the Linux kernel HID uclogic driver allows physically proximate attackers to access freed memory through a device uevent. The driver allocates input_dev.name with devres tied to input_dev rather than the HID device, so unregistration frees the name before a later uevent reads it. Reachability requires a supported uclogic HID device and a uevent after its input device is unregistered; published sources specify no concrete exploit outcome.

The record

CVE
CVE-2023-54207
Published
Dec 30, 2025
Updated
Dec 30, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-416, T1200
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 30, 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=4.1
  2. Affected versionversion=cce2dbdf258e6b27b2b100f511531edabb77f427 <4c2707dfee5847dc0b5ecfbe512c29c93832fdc4
  3. Affected versionversion=cce2dbdf258e6b27b2b100f511531edabb77f427 <58f0d1c0e494a88f301bf455da7df4366f179bbb
  4. Affected versionversion=cce2dbdf258e6b27b2b100f511531edabb77f427 <dd613a4e45f8d35f49a63a2064e5308fa5619e29
  5. Affected versionversion=cce2dbdf258e6b27b2b100f511531edabb77f427 <f283805d984343b2f216e2f4c6c7af265b9542ae

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.1; version=cce2dbdf258e6b27b2b100f511531edabb77f427 <4c2707dfee5847dc0b5ecfbe512c29c93832fdc4; version=cce2dbdf258e6b27b2b100f511531edabb77f427 <58f0d1c0e494a88f301bf455da7df4366f179bbb; version=cce2dbdf258e6b27b2b100f511531edabb77f427 <dd613a4e45f8d35f49a63a2064e5308fa5619e29; version=cce2dbdf258e6b27b2b100f511531edabb77f427 <f283805d984343b2f216e2f4c6c7af265b9542ae

Published CVSS scores

5.2CanonicalCVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1200Hardware Additions

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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