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Vulnerability record · CVE-2026-51539 · published 13 July 2026

CVE-2026-51539: Uncontrolled resource consumption vulnerability

A Denial of Service (DoS) vulnerability exists in the receive loop of libmodbus 3.1.12 when running on Windows. The issue stems from improper timeout management during network read operations.

7.5 CVSS 3.1 High EPSS 0.49% · top 60.5% CWE-400 · Uncontrolled resource consumption Deferred
7.5CVSS 3.1 base score
0.49%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
15 Jul 2026Last modified by NVD

Description

A Denial of Service (DoS) vulnerability exists in the receive loop of libmodbus 3.1.12 when running on Windows. The issue stems from improper timeout management during network read operations.

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

References

LinkTags
https://gist.github.com/MrAlaskan/f22dcf01a5dd90da1b191fcee9043a32
https://github.com/stephane/libmodbus/issues/843

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Source: NIST National Vulnerability Database (record CVE-2026-51539), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.