CVE-2024-31040

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Published Apr 17, 2024 CVSS 3.1 · 2.7 Low EPSS < 1% KEV · Not listed

Description

Buffer Overflow vulnerability in the get_var_integer function in mqtt_parser.c in NanoMQ 0.21.7 allows remote attackers to cause a denial of service via a series of specially crafted hexstreams.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:emqx:nanomq:0.21.7:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.576% probability within 30 days)

Exploitation poc

Automatable no

Technical Impact partial

References

Link	Providers
https://github.com/nanomq/nanomq/issues/1720

History

Feb 26, 2026 12:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Jun 10, 2025 2:00 AM First appearance in the feed. Affected versions updated. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Emqx Emqx nanomq
CPEs		cpe:2.3:a:emqx:nanomq:0.21.7:::::::*
Vendors & Products		Emqx Emqx nanomq

Subscriptions

Emqx Nanomq

Weaknesses

CWE-120

Sources

CVE record Updated: Aug 2, 2024, 1:46 AM

Status: PUBLISHED
Assigner: mitre
Published: Apr 17, 2024, 12:00 AM
Updated: Aug 2, 2024, 1:46 AM
Reserved: Mar 27, 2024, 12:00 AM

View source JSON

Vulnrichment Updated: Aug 2, 2024, 1:46 AM

Updated: Aug 2, 2024, 1:46 AM

NVD Updated: Jun 17, 2026, 7:27 AM

Status: Analyzed
Published: Apr 17, 2024, 7:15 PM
Modified: Jun 17, 2026, 7:27 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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