CVE-2023-52478

Kernel crash via concurrent HID++ battery initialization

Published Feb 29, 2024 · Updated Aug 5, 2026

Race condition in the Linux kernel allows physically proximate attackers to crash a host through a malicious HID++ device. Concurrent hidpp_connect_event() paths can register two power supplies sharing hidpp->battery.desc, then receiver disconnection frees properties still used by power_supply_uevent(). Exploitation requires a Logitech-compatible Bluetooth or Unifying RF peripheral that can race device connection and disconnection without an operating-system account.

CVSS severity4.7
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in the Linux kernel allows physically proximate attackers to crash a host through a malicious HID++ device. Concurrent hidpp_connect_event() paths can register two power supplies sharing hidpp->battery.desc, then receiver disconnection frees properties still used by power_supply_uevent(). Exploitation requires a Logitech-compatible Bluetooth or Unifying RF peripheral that can race device connection and disconnection without an operating-system account.

The record

CVE
CVE-2023-52478
Published
Feb 29, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-367, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 29, 2024CVE 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=3.19
  2. Affected versionversion=c39e3d5fc9dd3e16c6f59dd94d827540040de66d <093af62c023537f097d2ebdfaa0bc7c1a6e874e1
  3. Affected versionversion=c39e3d5fc9dd3e16c6f59dd94d827540040de66d <28ddc1e0b898291323b62d770b1b931de131a528
  4. Affected versionversion=c39e3d5fc9dd3e16c6f59dd94d827540040de66d <44481b244fcaa2b895a53081d6204c574720c38c
  5. Affected versionversion=c39e3d5fc9dd3e16c6f59dd94d827540040de66d <ca0c4cc1d215dc22ab0e738c9f017c650f3183f5
  6. Affected versionversion=c39e3d5fc9dd3e16c6f59dd94d827540040de66d <cd0e2bf7fb22fe9b989c59c42dca06367fd10e6b
  7. Affected versionversion=c39e3d5fc9dd3e16c6f59dd94d827540040de66d <dac501397b9d81e4782232c39f94f4307b137452
  8. Affected versionversion=c39e3d5fc9dd3e16c6f59dd94d827540040de66d <f7b2c7d9831af99369fe8ad9b2a68d78942f414e
  9. Affected versionversion=c39e3d5fc9dd3e16c6f59dd94d827540040de66d <fd72ac9556a473fc7daf54efb6ca8a97180d621d

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.19; version=c39e3d5fc9dd3e16c6f59dd94d827540040de66d <093af62c023537f097d2ebdfaa0bc7c1a6e874e1; version=c39e3d5fc9dd3e16c6f59dd94d827540040de66d <28ddc1e0b898291323b62d770b1b931de131a528; version=c39e3d5fc9dd3e16c6f59dd94d827540040de66d <44481b244fcaa2b895a53081d6204c574720c38c; version=c39e3d5fc9dd3e16c6f59dd94d827540040de66d <ca0c4cc1d215dc22ab0e738c9f017c650f3183f5; version=c39e3d5fc9dd3e16c6f59dd94d827540040de66d <cd0e2bf7fb22fe9b989c59c42dca06367fd10e6b; version=c39e3d5fc9dd3e16c6f59dd94d827540040de66d <dac501397b9d81e4782232c39f94f4307b137452; version=c39e3d5fc9dd3e16c6f59dd94d827540040de66d <f7b2c7d9831af99369fe8ad9b2a68d78942f414e; version=c39e3d5fc9dd3e16c6f59dd94d827540040de66d <fd72ac9556a473fc7daf54efb6ca8a97180d621d

Published CVSS scores

4.7Canonical UbuntuCVSS:3.1/AV:L/AC:H/PR:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-367Time-of-check Time-of-use (TOCTOU) Race Condition
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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