CVE-2018-20818
Last modified
CVE-2018-20818 is a vulnerability of currently unknown severity. A buffer overflow vulnerability was discovered in the OpenPLC controller, in the OpenPLC_v2 and OpenPLC_v3 versions. It occurs in the modbus.cpp mapUnusedIO() function, which can cause a runtime crash of the PLC or possibly have unspecified other impact.. EPSS estimates a 1.53% chance of exploitation in the next 30 days.
Description
A buffer overflow vulnerability was discovered in the OpenPLC controller, in the OpenPLC_v2 and OpenPLC_v3 versions. It occurs in the modbus.cpp mapUnusedIO() function, which can cause a runtime crash of the PLC or possibly have unspecified other impact.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Openplcproject | Openplc V2 Firmware | All versions |
| Openplcproject | Openplc V3 Firmware | All versions |
References
- https://arxiv.org/pdf/1809.07477Third Party Advisory
- https://arxiv.org/pdf/1809.07477Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-20818?
How severe is CVE-2018-20818?
How do I fix CVE-2018-20818?
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.
Related CVEs from 2018
- CVE-2018-20812An information exposure issue where IPv6 DNS traffic would b…
- CVE-2018-20813An input validation issue has been found with login_meeting.…
- CVE-2018-20814An XSS issue was found with Psaldownload.cgi in Pulse Secure…
- CVE-2018-20815In QEMU 3.1.0, load_device_tree in device_tree.c calls the d…
- CVE-2018-20816An XSS combined with CSRF vulnerability discovered in SalesA…
- CVE-2018-20817SV_SteamAuthClient in various Activision Infinity Ward Call …
- CVE-2018-20819io/ZlibCompression.cc in the decompression component in Drop…
- CVE-2018-2082Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultI…
- CVE-2018-20820read_ujpg in jpgcoder.cc in Dropbox Lepton 1.2.1 allows atta…
- CVE-2018-20821The parsing component in LibSass through 3.5.5 allows attack…6.5
- CVE-2018-20822LibSass 3.5.4 allows attackers to cause a denial-of-service …6.5
- CVE-2018-20823The gyroscope on Xiaomi Mi 5s devices allows attackers to ca…
Are you affected by CVE-2018-20818?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST