CVE-2024-36843

HIGHNVD 7.57.5—Elevated

7.5

libmodbus v3.1.6 was discovered to contain a heap overflow via the modbus_mapping_free() function.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 73.5%
KEV: Not listed

Published

May 31, 2024

Last Modified

November 3, 2025

References (5)

cve@mitrehttps://github.com/balckgu1/libmodbusPoc/blob/main/gdb.md
cve@mitrehttps://github.com/stephane/libmodbus/issues/748
af854a3a-2127-422b-91ae-364da2661108https://github.com/balckgu1/libmodbusPoc/blob/main/gdb.md
af854a3a-2127-422b-91ae-364da2661108https://github.com/stephane/libmodbus/issues/748
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/03/msg00010.html

Weakness Classification(1)

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

CWE-122Heap-based Buffer Overflow

Data Freshness Timeline

(refreshed 10× in last 7d / 20× 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.

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Frequently asked(5)

What is CVE-2024-36843?

CVE-2024-36843 is a high vulnerability published on May 31, 2024. libmodbus v3.1.6 was discovered to contain a heap overflow via the modbusmappingfree() function.

When was CVE-2024-36843 disclosed?

CVE-2024-36843 was first published in the National Vulnerability Database on May 31, 2024, with the most recent update on November 3, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2024-36843 actively exploited?

CVE-2024-36843 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 73.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2024-36843?

CVE-2024-36843 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2024-36843?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-36843, 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.

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CVE-2024-36843

📅 Published

🔄 Last Modified

🔗 References (5)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2024-36843?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (5)

Frequently asked(5)

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