CVE-2023-52683

Local service interruption via TSC multiplication overflow

Published May 17, 2024 · Updated May 11, 2026

Integer overflow in Linux kernel ACPI LPIT code allows local users to interrupt service when the TSC exceeds 4,294,967 kHz. lpit_update_residency() multiplies the 32-bit tsc_khz value by 1,000 in u32 arithmetic, causing wraparound above that threshold. Reachability requires local low-privileged access, ACPI LPIT support, and a sufficiently high TSC; only availability impact is published.

CVSS severity5.5
Medium
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

Integer overflow in Linux kernel ACPI LPIT code allows local users to interrupt service when the TSC exceeds 4,294,967 kHz. lpit_update_residency() multiplies the 32-bit tsc_khz value by 1,000 in u32 arithmetic, causing wraparound above that threshold. Reachability requires local low-privileged access, ACPI LPIT support, and a sufficiently high TSC; only availability impact is published.

The record

CVE
CVE-2023-52683
Published
May 17, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 17, 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=4.15
  2. Affected versionversion=eeb2d80d502af28e5660ff4bbe00f90ceb82c2db <56d2eeda87995245300836ee4dbd13b002311782
  3. Affected versionversion=eeb2d80d502af28e5660ff4bbe00f90ceb82c2db <647d1d50c31e60ef9ccb9756a8fdf863329f7aee
  4. Affected versionversion=eeb2d80d502af28e5660ff4bbe00f90ceb82c2db <6c38e791bde07d6ca2a0a619ff9b6837e0d5f9ad
  5. Affected versionversion=eeb2d80d502af28e5660ff4bbe00f90ceb82c2db <72222dfd76a79d9666ab3117fcdd44ca8cd0c4de
  6. Affected versionversion=eeb2d80d502af28e5660ff4bbe00f90ceb82c2db <b7aab9d906e2e252a7783f872406033ec49b6dae
  7. Affected versionversion=eeb2d80d502af28e5660ff4bbe00f90ceb82c2db <c1814a4ffd016ce5392c6767d22ef3aa2f0d4bd1
  8. Affected versionversion=eeb2d80d502af28e5660ff4bbe00f90ceb82c2db <d1ac288b2742aa4af746c5613bac71760fadd1c4
  9. Affected versionversion=eeb2d80d502af28e5660ff4bbe00f90ceb82c2db <f39c3d578c7d09a18ceaf56750fc7f20b02ada63

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.15; version=eeb2d80d502af28e5660ff4bbe00f90ceb82c2db <56d2eeda87995245300836ee4dbd13b002311782; version=eeb2d80d502af28e5660ff4bbe00f90ceb82c2db <647d1d50c31e60ef9ccb9756a8fdf863329f7aee; version=eeb2d80d502af28e5660ff4bbe00f90ceb82c2db <6c38e791bde07d6ca2a0a619ff9b6837e0d5f9ad; version=eeb2d80d502af28e5660ff4bbe00f90ceb82c2db <72222dfd76a79d9666ab3117fcdd44ca8cd0c4de; version=eeb2d80d502af28e5660ff4bbe00f90ceb82c2db <b7aab9d906e2e252a7783f872406033ec49b6dae; version=eeb2d80d502af28e5660ff4bbe00f90ceb82c2db <c1814a4ffd016ce5392c6767d22ef3aa2f0d4bd1; version=eeb2d80d502af28e5660ff4bbe00f90ceb82c2db <d1ac288b2742aa4af746c5613bac71760fadd1c4; version=eeb2d80d502af28e5660ff4bbe00f90ceb82c2db <f39c3d578c7d09a18ceaf56750fc7f20b02ada63

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

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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