dbcve.org
VernemqApplication · Octavolabs

CVE-2024-44459

HIGH · 7.5 CVSS v3.1 Published 2024-09-12
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A memory allocation issue in vernemq v2.0.1 allows attackers to cause a Denial of Service (DoS) via excessive memory consumption.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

VerneMQ v2.0.1 contains a memory allocation vulnerability where the broker fails to properly validate or limit memory consumption during certain operations, allowing remote attackers to trigger excessive memory allocation and exhaust server resources, resulting in a Denial of Service condition.

MitigationImplement memory consumption limits and request validation within VerneMQ to prevent unbounded memory allocation; consider adding connection throttling, message size limits, and resource quotas until a patched version is available.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
VernemqApplication
Affected:= 2.0.1

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify VerneMQ installation and version
    Run 'vmq-admin --version' or check the VerneMQ package version installed via your package manager (e.g., 'apt list --installed | grep vernemq' or 'rpm -qa | grep vernemq')
    Affected if The installed version is exactly 2.0.1
  2. Verify VerneMQ broker is running
    Check if the VerneMQ broker process is active using 'ps aux | grep vernemq' or 'systemctl status vernemq'
    Affected if VerneMQ version 2.0.1 is currently running and exposed to network connections
  3. Confirm broker is network accessible
    Check the VerneMQ listener configuration in vmq.conf for exposed ports (default MQTT: 1883, MQTT-TLS: 8883, WebSocket: 8080) and verify network exposure with 'netstat -tlnp | grep vmq' or 'ss -tlnp | grep vmq'
    Affected if The VerneMQ broker is reachable over the network on any port, allowing remote attackers to trigger the memory allocation flaw

If VerneMQ version 2.0.1 is running and network-accessible, the environment is affected by this memory allocation vulnerability that could allow remote DoS attacks.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Implement memory consumption limits and request validation within VerneMQ to prevent unbounded memory allocation; consider adding connection throttling, message size limits, and resource quotas until a patched version is available.

Fix this in Vernemq Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-44459 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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