Stack-based Buffer Overflow in libmodbus library

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2024-10918
StatePUBLISHED
AssignerNozomi
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-02-27 12:15:33 UTC
Updated2026-08-01 19:16:41 UTC
DescriptionStack-based Buffer Overflow vulnerability in libmodbus v3.1.10 allows to overflow the buffer allocated for the Modbus response if the function tries to reply to a Modbus request with an unexpected length.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-121 | CWE-787 | CWE-121 CWE-121 Stack-based Buffer Overflow

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1[email protected]Secondary4.8MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
3.1CNACVSS4.8MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Libmodbus Libmodbus 3.1.10 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Libmodbus Libmodbus affected 3.1.10 semver Not specified

References

ReferenceSourceLinkTags
lists.debian.org/debian-lts-announce/2026/08/msg00003.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
www.nozominetworks.com/labs/vulnerability-advisories-cve-2024-10918 [email protected] www.nozominetworks.com Third Party Advisory
lists.debian.org/debian-lts-announce/2025/03/msg00010.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Gabriele Quagliarella of Nozomi Networks found this bug during a security research activity. (en)

Additional Advisory Data

Solutions

CNA: To fix this issue, it's suggested to update libmodbus to v3.1.11

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