CVE-2024-36844: Libmodbus

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

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.

Affected products

• Libmodbus Libmodbus: version 3.1.6 only

Published 2024-05-31. Last modified 2026-06-17.