CVE-2024-11584

Unauthorized hotplug triggering via world-writable FIFO

Published Jun 26, 2025 · Updated Jun 26, 2025

Incorrect permissions in Canonical cloud-init 21.3 through 25.1.2 allow local users to trigger hotplug-hook commands through a FIFO. The cloud-init-hotplugd.socket unit assigns SocketMode 0666 to /run/cloud-init/hook-hotplug-cmd, allowing any local process to write commands intended for a root-only udev trigger. Exploitation requires local execution on a Linux host with the hotplug socket enabled and is limited to the query, handle, and enable actions accepted by the hook.

CVSS severity5.9
Medium
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect permissions in Canonical cloud-init 21.3 through 25.1.2 allow local users to trigger hotplug-hook commands through a FIFO. The cloud-init-hotplugd.socket unit assigns SocketMode 0666 to /run/cloud-init/hook-hotplug-cmd, allowing any local process to write commands intended for a root-only udev trigger. Exploitation requires local execution on a Linux host with the hotplug socket enabled and is limited to the query, handle, and enable actions accepted by the hook.

The record

CVE
CVE-2024-11584
Published
Jun 26, 2025
Updated
Jun 26, 2025
Vendor
Canonical
Product
cloud-init
Classifications
CWE-732
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 26, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 26, 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=21.3 <25.1.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Canonical · cloud-initversion=21.3 <25.1.3

Published CVSS scores

5.9CanonicalCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
5.3NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-732Incorrect Permission Assignment for Critical Resource

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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