CVE-2023-53313

RAID device failure via signed threshold overflow

Published Sep 16, 2025 · Updated Sep 16, 2025

Integer overflow in Linux kernel md/RAID10 allows local users to force a RAID device failure through the max_read_errors sysfs attribute. The max_corrected_read_errors_store function parses an unsigned value, then stores it in a signed atomic integer without rejecting values above INT_MAX, producing a negative threshold. Write access to the owner-writable attribute on a configured RAID10 array is required; a subsequent corrected read error can exceed the negative threshold and mark a mirror device faulty.

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

What happened

Integer overflow in Linux kernel md/RAID10 allows local users to force a RAID device failure through the max_read_errors sysfs attribute. The max_corrected_read_errors_store function parses an unsigned value, then stores it in a signed atomic integer without rejecting values above INT_MAX, producing a negative threshold. Write access to the owner-writable attribute on a configured RAID10 array is required; a subsequent corrected read error can exceed the negative threshold and mark a mirror device faulty.

The record

CVE
CVE-2023-53313
Published
Sep 16, 2025
Updated
Sep 16, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2025Record 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=1e50915fe0bbf7a46db0fa7e1e604d3fc95f057d <025fde32fb957a5c271711bc66841f817ff5f299
  2. Affected versionversion=1e50915fe0bbf7a46db0fa7e1e604d3fc95f057d <05d10428e8dffed0bac2502f34151729fc189cd3
  3. Affected versionversion=1e50915fe0bbf7a46db0fa7e1e604d3fc95f057d <31c805a44b7569ca1017a4714385182d98bba212
  4. Affected versionversion=1e50915fe0bbf7a46db0fa7e1e604d3fc95f057d <3c76920e547d4b931bed758bad83fd658dd88b4e
  5. Affected versionversion=1e50915fe0bbf7a46db0fa7e1e604d3fc95f057d <74050a3fdd4aecfd2cbf74d3c145812ab2744375
  6. Affected versionversion=1e50915fe0bbf7a46db0fa7e1e604d3fc95f057d <aef6e98eb772594edd4399625e4e1bbe45971fa1
  7. Affected versionversion=1e50915fe0bbf7a46db0fa7e1e604d3fc95f057d <b1d8f38310bce3282374983b229d94edbaf1e570
  8. Affected versionversion=1e50915fe0bbf7a46db0fa7e1e604d3fc95f057d <e83cb411aa1c6c9617db9329897f4506ba9e9b9d
  9. Affected versionversion=1e50915fe0bbf7a46db0fa7e1e604d3fc95f057d <f8b20a405428803bd9881881d8242c9d72c6b2b2
  10. Affected versionversion=2.6.33

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1e50915fe0bbf7a46db0fa7e1e604d3fc95f057d <025fde32fb957a5c271711bc66841f817ff5f299; version=1e50915fe0bbf7a46db0fa7e1e604d3fc95f057d <05d10428e8dffed0bac2502f34151729fc189cd3; version=1e50915fe0bbf7a46db0fa7e1e604d3fc95f057d <31c805a44b7569ca1017a4714385182d98bba212; version=1e50915fe0bbf7a46db0fa7e1e604d3fc95f057d <3c76920e547d4b931bed758bad83fd658dd88b4e; version=1e50915fe0bbf7a46db0fa7e1e604d3fc95f057d <74050a3fdd4aecfd2cbf74d3c145812ab2744375; version=1e50915fe0bbf7a46db0fa7e1e604d3fc95f057d <aef6e98eb772594edd4399625e4e1bbe45971fa1; version=1e50915fe0bbf7a46db0fa7e1e604d3fc95f057d <b1d8f38310bce3282374983b229d94edbaf1e570; version=1e50915fe0bbf7a46db0fa7e1e604d3fc95f057d <e83cb411aa1c6c9617db9329897f4506ba9e9b9d; version=1e50915fe0bbf7a46db0fa7e1e604d3fc95f057d <f8b20a405428803bd9881881d8242c9d72c6b2b2; version=2.6.33

Published CVSS scores

5.5NVDCVSS: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

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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