What’s Vulnerable › Vulnerabilities

CVE-2022-0367

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-08-29 · updated 2026-06-17
• Weakness: CWE-119

Description

A heap-based buffer overflow flaw was found in libmodbus in function modbus_reply() in src/modbus.c.

Affected products

• Debian Linux: 10.0
• Fedoraproject Extra Packages For Enterprise Linux: 7.0
• Fedoraproject Fedora: 35
• libmodbus: before 3.1.7 — fixed in 3.1.7

How to fix

Upgrade to a fixed version: libmodbus 3.1.7. Check the vendor advisory for mitigations.

References

• https://bugzilla.redhat.com/show_bug.cgi?id=2045571
• https://github.com/stephane/libmodbus/commit/b4ef4c17d618eba0adccc4c7d9e9a1ef809fc9b6
• https://github.com/stephane/libmodbus/issues/614
• https://lists.debian.org/debian-lts-announce/2022/09/msg00007.html
• https://bugzilla.redhat.com/show_bug.cgi?id=2045571
• https://github.com/stephane/libmodbus/commit/b4ef4c17d618eba0adccc4c7d9e9a1ef809fc9b6
• https://github.com/stephane/libmodbus/issues/614
• https://lists.debian.org/debian-lts-announce/2022/09/msg00007.html
• https://lists.debian.org/debian-lts-announce/2025/03/msg00010.html

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