CVE-2023-54252

Service interruption via unreleased WMI setting allocations

Published Dec 30, 2025 · Updated Dec 30, 2025

Memory leak in the think-lmi driver in Linux 5.15.106, 6.1.23, and 6.2.10 allows local users to interrupt service. The driver retains an item allocated by tlmi_setting while parsing ThinkStation WMI strings instead of releasing it after use. Exploitation requires local low-privileged access and compatible ThinkStation WMI firmware; repeated allocations can exhaust kernel memory and crash or hang the host.

CVSS severity5.7
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leak in the think-lmi driver in Linux 5.15.106, 6.1.23, and 6.2.10 allows local users to interrupt service. The driver retains an item allocated by tlmi_setting while parsing ThinkStation WMI strings instead of releasing it after use. Exploitation requires local low-privileged access and compatible ThinkStation WMI firmware; repeated allocations can exhaust kernel memory and crash or hang the host.

The record

CVE
CVE-2023-54252
Published
Dec 30, 2025
Updated
Dec 30, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.15.106 <5.15.107
  2. Affected versionversion=6.1.23 <6.1.24
  3. Affected versionversion=6.2.10 <6.2.11
  4. Affected versionversion=8a02d70679fc1c434401863333c8ea7dbf201494 <e7d796fccdc8d17c2d21817ebe4c7bf5bbfe5433
  5. Affected versionversion=c9c542eba4edf8d061bd2e5007cf598625e112df <43fc0342bac1808fda2b76184e43414727111c6b
  6. Affected versionversion=dae47bf0222e1e0eb6684c7e141b7170b0884a4c <cccdb30935c82be805d3362a15680b95d5cb3ee0
  7. Affected versionversion=f0a67ad7dce49d93570edc795e0312bb787f19bb <081da7b1c881828244b93b3befb7c18389f696bb

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.15.106 <5.15.107; version=6.1.23 <6.1.24; version=6.2.10 <6.2.11; version=8a02d70679fc1c434401863333c8ea7dbf201494 <e7d796fccdc8d17c2d21817ebe4c7bf5bbfe5433; version=c9c542eba4edf8d061bd2e5007cf598625e112df <43fc0342bac1808fda2b76184e43414727111c6b; version=dae47bf0222e1e0eb6684c7e141b7170b0884a4c <cccdb30935c82be805d3362a15680b95d5cb3ee0; version=f0a67ad7dce49d93570edc795e0312bb787f19bb <081da7b1c881828244b93b3befb7c18389f696bb

Published CVSS scores

4.7SUSECVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
5.7SUSECVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

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

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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