CVE-2024-25767Public exploitNetwork attack vector

Broker crash via freed socket pointer dereference

Published Feb 26, 2024 · Updated Oct 27, 2024

Use-after-free in NanoMQ 0.21.2 allows remote authenticated users to crash the broker through network-accessible socket handling. In socket.c, sock_destroy passes pointer s to nni_free, but later code dereferences s->s_id after the allocation has been released. Low-privileged network access is required, and the reported consequence is service interruption rather than data disclosure or modification.

CVSS severity6.5
Medium
EPSS probability0.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Use-after-free in NanoMQ 0.21.2 allows remote authenticated users to crash the broker through network-accessible socket handling. In socket.c, sock_destroy passes pointer s to nni_free, but later code dereferences s->s_id after the allocation has been released. Low-privileged network access is required, and the reported consequence is service interruption rather than data disclosure or modification.

The record

CVE
CVE-2024-25767
Published
Feb 26, 2024
Updated
Oct 27, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-416, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 26, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 27, 2024Record 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 vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-416Use After Free
T1499.004Application 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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