CVE-2023-52429Public exploit

System crash via unchecked device-mapper target count

Published Feb 12, 2024 · Updated Nov 4, 2025

Denial of service in the Linux kernel 6.7.4 and earlier allows local users to crash the system through a device-mapper table load. dm_table_create passes the unbounded dm_ioctl.target_count value to alloc_targets, whose kvcalloc request can exceed INT_MAX bytes. Reaching the ioctl requires CAP_SYS_ADMIN in the initial namespace, and successful triggering interrupts availability by crashing the host.

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

Denial of service in the Linux kernel 6.7.4 and earlier allows local users to crash the system through a device-mapper table load. dm_table_create passes the unbounded dm_ioctl.target_count value to alloc_targets, whose kvcalloc request can exceed INT_MAX bytes. Reaching the ioctl requires CAP_SYS_ADMIN in the initial namespace, and successful triggering interrupts availability by crashing the host.

The record

CVE
CVE-2023-52429
Published
Feb 12, 2024
Updated
Nov 4, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-754, CWE-789, T1499.004
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Feb 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5CISA-ADPCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-754Improper Check for Unusual or Exceptional Conditions
CWE-789Memory Allocation with Excessive Size Value
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

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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