CRITICAL🇵🇱 Wersja polska

CVE-2018-20818

CVSS 9.8v3.0pub. 2019-04-22upd. 2024-11-21

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.

CVSS Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

  • Openplcproject Openplc V2

    HW
    Openplcproject
    wszystkie wersje

  • Openplcproject Openplc V2 Firmware

    OS
    Openplcproject
    wszystkie wersje

  • Openplcproject Openplc V3

    HW
    Openplcproject
    wszystkie wersje

  • Openplcproject Openplc V3 Firmware

    OS
    Openplcproject
    wszystkie wersje
🔵
CHECK WITH VENDOR
No clear patch data available. Check vendor references.
Tags
Memory
CWE
References

Related vulnerabilities

CVE-2026-28205CRITICAL9.2PL ✓ten sam produkt

OpenPLC V3 — pominięcie uwierzytelnienia przez niezabezpieczoną domyślną inicjalizację

CVE-2026-35556CRITICAL9.2PL ✓ten sam produkt

OpenPLC V3 — przechowywanie haseł w postaci jawnego tekstu (CWE-256)

CVE-2024-34026CRITICAL9.0PL ✓ten sam produkt

Stack-based buffer overflow w OpenPLC V3 — RCE przez EtherNet/IP

CVE-2026-35063HIGH8.7ten sam produkt

OpenPLC_V3 REST API endpoint checks for JWT presence but never verifies the caller's role. Any authenticated u...

CVE-2024-36980HIGH7.5ten sam produkt

An out-of-bounds read vulnerability exists in the OpenPLC Runtime EtherNet/IP PCCC parser functionality of Ope...