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

CVE-2024-36843

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

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

HIGH · CVSS 7.5 EPSS 0.00751
Act now
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-122Heap-based Buffer Overflow
▤

Affected Products & Versions

1
libmodbusall versions
⚠

Public Exploits & PoCs

2
pocgithub.com · gdb.mdgithub.com
pocgithub.com · issues/748github.com
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD31 May 2024 · 08:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://lists.debian.org/debian-lts-announce/2025/03/msg00010.html
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