CVE-2018-20818
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductOpenplcproject Openplc V2 Firmware
PublishedApr 22, 2019
First seenApr 22, 2019
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| openplcproject openplc_v2_firmware | No range specified | — |
| openplcproject openplc_v3_firmware | No range specified | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.