CVE-2024-38563

Kernel memory leak via unreleased temperature response buffers

Published Jun 19, 2024 · Updated May 11, 2026

Memory leak in the Linux kernel 6.8 mt7996 Wi-Fi driver allows attackers to consume kernel memory by reading chip temperature. The mt7996_mcu_get_temperature function extracts the temperature from an MCU response buffer but returns without freeing the associated socket buffer. The condition requires an mt7996 device and temperature reads; each read leaks memory, producing cumulative memory pressure.

CVSS severityUnavailable
Unscored
EPSS probability0.22%
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 Linux kernel 6.8 mt7996 Wi-Fi driver allows attackers to consume kernel memory by reading chip temperature. The mt7996_mcu_get_temperature function extracts the temperature from an MCU response buffer but returns without freeing the associated socket buffer. The condition requires an mt7996 device and temperature reads; each read leaks memory, producing cumulative memory pressure.

The record

CVE
CVE-2024-38563
Published
Jun 19, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Jun 19, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=6.8
  2. Affected versionversion=6879b2e94172ed80394dd49d410814ad427d1ca0 <474b9412f33be87076b40a49756662594598a85e
  3. Affected versionversion=6879b2e94172ed80394dd49d410814ad427d1ca0 <84e81f9b4818b8efe89beb12a246d5d510631939
  4. Affected versionversion=6879b2e94172ed80394dd49d410814ad427d1ca0 <ef46dbb93fc9279fb7de883aac22abffe214e6b5

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=6.8; version=6879b2e94172ed80394dd49d410814ad427d1ca0 <474b9412f33be87076b40a49756662594598a85e; version=6879b2e94172ed80394dd49d410814ad427d1ca0 <84e81f9b4818b8efe89beb12a246d5d510631939; version=6879b2e94172ed80394dd49d410814ad427d1ca0 <ef46dbb93fc9279fb7de883aac22abffe214e6b5

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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