CVE-2024-50141

Service interruption via incorrect PRM memory mapping

Published Nov 7, 2024 · Updated Aug 5, 2026

Denial of service in Linux kernel 5.14 allows local users to interrupt the system by invoking an affected ACPI PRM handler. The PRMT parsing path accepts an EFI_CONVENTIONAL_MEMORY block for the handler and context instead of requiring the EFI_MEMORY_RUNTIME attribute, leaving runtime pointers outside firmware-remapped memory. Reachability requires a locally triggered PRM call on firmware that exposes the affected handler; the resulting EFI paging exception can disrupt error handling.

CVSS severity7.8
High
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

Denial of service in Linux kernel 5.14 allows local users to interrupt the system by invoking an affected ACPI PRM handler. The PRMT parsing path accepts an EFI_CONVENTIONAL_MEMORY block for the handler and context instead of requiring the EFI_MEMORY_RUNTIME attribute, leaving runtime pointers outside firmware-remapped memory. Reachability requires a locally triggered PRM call on firmware that exposes the affected handler; the resulting EFI paging exception can disrupt error handling.

The record

CVE
CVE-2024-50141
Published
Nov 7, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 7, 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=5.14
  2. Affected versionversion=cefc7ca46235f01d5233e3abd4b79452af01d9e9 <088984c8d54c0053fc4ae606981291d741c5924b
  3. Affected versionversion=cefc7ca46235f01d5233e3abd4b79452af01d9e9 <20e9fafb8bb6f545667d7916b0e81e68c0748810
  4. Affected versionversion=cefc7ca46235f01d5233e3abd4b79452af01d9e9 <795b080d9aa127215a5baf088a22fa09341a0126
  5. Affected versionversion=cefc7ca46235f01d5233e3abd4b79452af01d9e9 <8ce081ad842510f0e70fa6065a401660eac876d4
  6. Affected versionversion=cefc7ca46235f01d5233e3abd4b79452af01d9e9 <8df52929530839e878e6912e33348b54101e3250

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.14; version=cefc7ca46235f01d5233e3abd4b79452af01d9e9 <088984c8d54c0053fc4ae606981291d741c5924b; version=cefc7ca46235f01d5233e3abd4b79452af01d9e9 <20e9fafb8bb6f545667d7916b0e81e68c0748810; version=cefc7ca46235f01d5233e3abd4b79452af01d9e9 <795b080d9aa127215a5baf088a22fa09341a0126; version=cefc7ca46235f01d5233e3abd4b79452af01d9e9 <8ce081ad842510f0e70fa6065a401660eac876d4; version=cefc7ca46235f01d5233e3abd4b79452af01d9e9 <8df52929530839e878e6912e33348b54101e3250

Published CVSS scores

7.8LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5Amazon LinuxCVSS:3.1/AV:L/AC:L/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Application or System Exploitation

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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