CVE-2024-26599

PWM polarity misconfiguration via out-of-bounds argument read

Published Feb 23, 2024 · Updated May 11, 2026

Out-of-bounds access in the Linux kernel PWM core from 5.17 allows attackers to set incorrect PWM polarity through a two-cell specifier. of_pwm_single_xlate() accepts two arguments but tests the inversion flag in undefined args[2] instead of the valid args[1] element. Reachability requires a device-tree PWM consumer using this single-channel translation path; the demonstrated consequence is an incorrect polarity setting, not disclosed code execution or memory exposure.

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

Out-of-bounds access in the Linux kernel PWM core from 5.17 allows attackers to set incorrect PWM polarity through a two-cell specifier. of_pwm_single_xlate() accepts two arguments but tests the inversion flag in undefined args[2] instead of the valid args[1] element. Reachability requires a device-tree PWM consumer using this single-channel translation path; the demonstrated consequence is an incorrect polarity setting, not disclosed code execution or memory exposure.

The record

CVE
CVE-2024-26599
Published
Feb 23, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-119
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 23, 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=3ab7b6ac5d829e60c3b89d415811ff1c9f358c8e <7b85554c7c2aee91171e038e4d5442ffa130b282
  2. Affected versionversion=3ab7b6ac5d829e60c3b89d415811ff1c9f358c8e <a297d07b9a1e4fb8cda25a4a2363a507d294b7c9
  3. Affected versionversion=3ab7b6ac5d829e60c3b89d415811ff1c9f358c8e <bae45b7ebb31984b63b13c3519fd724b3ce92123
  4. Affected versionversion=3ab7b6ac5d829e60c3b89d415811ff1c9f358c8e <e5f2b4b62977fb6c2efcbc5779e0c9dce18215f7
  5. Affected versionversion=5.17

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3ab7b6ac5d829e60c3b89d415811ff1c9f358c8e <7b85554c7c2aee91171e038e4d5442ffa130b282; version=3ab7b6ac5d829e60c3b89d415811ff1c9f358c8e <a297d07b9a1e4fb8cda25a4a2363a507d294b7c9; version=3ab7b6ac5d829e60c3b89d415811ff1c9f358c8e <bae45b7ebb31984b63b13c3519fd724b3ce92123; version=3ab7b6ac5d829e60c3b89d415811ff1c9f358c8e <e5f2b4b62977fb6c2efcbc5779e0c9dce18215f7; version=5.17

Published CVSS scores

7.8NISTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer

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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