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CVE-2018-20818

UnknownEPSS 1.53%

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

EPSS Probability
1.53%

71.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
OpenplcprojectOpenplc V2 FirmwareAll versions
OpenplcprojectOpenplc V3 FirmwareAll versions

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2018-20818?
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.
How severe is CVE-2018-20818?
Severity scoring for CVE-2018-20818 is pending analysis. The EPSS model estimates a 1.53% probability of exploitation in the next 30 days.
How do I fix CVE-2018-20818?
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.

Are you affected by CVE-2018-20818?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST