CVE-2024-42651

HIGHNVD 7.57.5—Elevated

7.5

NanoMQ v0.17.9 was discovered to contain a heap use-after-free vulnerability via the component sub_Ctx_handle. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted SUBSCRIBE message.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 59.6%
KEV: Not listed

Published

July 29, 2025

Last Modified

August 6, 2025

References (3)

cve@mitrehttps://github.com/nanomq/nanomq
cve@mitrehttps://github.com/nanomq/nanomq/issues/1217
cve@mitrehttps://github.com/songxpu/bug_report/blob/master/MQTT/NanoMQ/CVE-2024-42651.md

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-400Uncontrolled Resource Consumption (Denial of Service)

Data Freshness Timeline

(refreshed 16× in last 7d / 19× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-06 13:46 UTCepss_batch
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2026-06-05 22:46 UTCepss_batch
2026-06-05 22:46 UTCepss_batch
2026-06-05 06:09 UTCepss_batch
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2026-06-04 13:11 UTCepss_batch
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2026-06-02 20:12 UTCepss_batch
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2026-06-01 13:51 UTCepss_batch
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2026-05-31 22:30 UTCepss_batch
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2026-05-31 00:16 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-30 01:10 UTCEG score recompute
2026-05-30 01:10 UTCGHSA enrichment
2026-05-29 13:43 UTCepss_batch

Frequently asked(5)

What is CVE-2024-42651?

CVE-2024-42651 is a high vulnerability published on July 29, 2025. NanoMQ v0.17.9 was discovered to contain a heap use-after-free vulnerability via the component subCtxhandle. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted SUBSCRIBE message.

When was CVE-2024-42651 disclosed?

CVE-2024-42651 was first published in the National Vulnerability Database on July 29, 2025, with the most recent update on August 6, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2024-42651 actively exploited?

CVE-2024-42651 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 59.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2024-42651?

CVE-2024-42651 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2024-42651?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-42651, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2024-42651

📅 Published

🔄 Last Modified

🔗 References (3)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2024-42651?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (3)

Frequently asked(5)

Related CVEs(same CWE)