CVE-2024-42237

Service interruption via unchecked firmware block length

Published Aug 7, 2024 · Updated May 11, 2026

Improper input validation in the Linux cs_dsp firmware loader allows local users to interrupt service through a malformed firmware file. The cs_dsp_load() and cs_dsp_coeff_load() paths use a block payload length before verifying that it fits within the remaining firmware buffer. Local low-privilege access and control of a firmware input are required, and the published assessment limits the consequence to availability without data disclosure or modification.

CVSS severity5.5
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in the Linux cs_dsp firmware loader allows local users to interrupt service through a malformed firmware file. The cs_dsp_load() and cs_dsp_coeff_load() paths use a block payload length before verifying that it fits within the remaining firmware buffer. Local low-privilege access and control of a firmware input are required, and the published assessment limits the consequence to availability without data disclosure or modification.

The record

CVE
CVE-2024-42237
Published
Aug 7, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-834, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 7, 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=5.16
  2. Affected versionversion=f6bc909e7673c30abcbdb329e7d0aa2e83c103d7 <259955eca9b7acf1299b1ac077d8cfbe12df35d8
  3. Affected versionversion=f6bc909e7673c30abcbdb329e7d0aa2e83c103d7 <3a9cd924aec1288d675df721f244da4dd7e16cff
  4. Affected versionversion=f6bc909e7673c30abcbdb329e7d0aa2e83c103d7 <6598afa9320b6ab13041616950ca5f8f938c0cf1
  5. Affected versionversion=f6bc909e7673c30abcbdb329e7d0aa2e83c103d7 <71d9e313d8f7e18c543a9c80506fe6b1eb1fe0c8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.16; version=f6bc909e7673c30abcbdb329e7d0aa2e83c103d7 <259955eca9b7acf1299b1ac077d8cfbe12df35d8; version=f6bc909e7673c30abcbdb329e7d0aa2e83c103d7 <3a9cd924aec1288d675df721f244da4dd7e16cff; version=f6bc909e7673c30abcbdb329e7d0aa2e83c103d7 <6598afa9320b6ab13041616950ca5f8f938c0cf1; version=f6bc909e7673c30abcbdb329e7d0aa2e83c103d7 <71d9e313d8f7e18c543a9c80506fe6b1eb1fe0c8

Published CVSS scores

5.5NIST NVDCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-834Excessive Iteration
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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