CVE-2019-14463
CRITICALCVSS 9.1/10EPSS 1.93%
Last modified
CVE-2019-14463 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. An issue was discovered in libmodbus before 3.0.7 and 3.1.x before 3.1.5. There is an out-of-bounds read for the MODBUS_FC_WRITE_MULTIPLE_REGISTERS case, aka VD-1301.. EPSS estimates a 1.93% chance of exploitation in the next 30 days.
Description
An issue was discovered in libmodbus before 3.0.7 and 3.1.x before 3.1.5. There is an out-of-bounds read for the MODBUS_FC_WRITE_MULTIPLE_REGISTERS case, aka VD-1301.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Libmodbus | Libmodbus | < 3.0.7 |
| Libmodbus | Libmodbus | >= 3.1.0, < 3.1.5 |
| Fedoraproject | Fedora | 29 |
| Fedoraproject | Fedora | 30 |
| Debian | Debian Linux | 9.0 |
References
- https://github.com/stephane/libmodbus/commit/5ccdf5ef79d742640355d1132fa9e2abc7fbaefcPatch, Third Party Advisory
- https://libmodbus.org/2019/stable-and-development-releases/Release Notes, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/11/msg00020.htmlMailing List, Third Party Advisory
- https://github.com/stephane/libmodbus/commit/5ccdf5ef79d742640355d1132fa9e2abc7fbaefcPatch, Third Party Advisory
- https://libmodbus.org/2019/stable-and-development-releases/Release Notes, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/11/msg00020.htmlMailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-14463?
An issue was discovered in libmodbus before 3.0.7 and 3.1.x before 3.1.5. There is an out-of-bounds read for the MODBUS_FC_WRITE_MULTIPLE_REGISTERS case, aka VD-1301.
How severe is CVE-2019-14463?
CVE-2019-14463 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 1.93% probability of exploitation in the next 30 days.
How do I fix CVE-2019-14463?
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.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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