CVE-2024-36844

Name: CVE-2024-36844
Creator: NVD / NIST
Published: 2024-05-31T20:15:10.38+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.61%

Last modified Jun 17, 2026

CVE-2024-36844 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. libmodbus v3.1.6 was discovered to contain a use-after-free via the ctx->backend pointer. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted message sent to the unit-test-server.. EPSS estimates a 0.61% chance of exploitation in the next 30 days.

Description

libmodbus v3.1.6 was discovered to contain a use-after-free via the ctx->backend pointer. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted message sent to the unit-test-server.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.61%

44.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Libmodbus	Libmodbus	3.1.6

References

https://github.com/stephane/libmodbus/issues/749Exploit, Issue Tracking, Vendor Advisory
https://github.com/stephane/libmodbus/issues/749Exploit, Issue Tracking, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2025/03/msg00010.html

Timeline

Published: May 31, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-36844?

How severe is CVE-2024-36844?

CVE-2024-36844 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.61% probability of exploitation in the next 30 days.

How do I fix CVE-2024-36844?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-36844?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST