How severe is CVE-2018-4850?

This vulnerability has a severity rating of HIGH with a CVSS score of 7.5 out of 10.

What type of vulnerability is CVE-2018-4850?

This is classified as CWE-20, which is a common weakness in software security.

CVE-2018-4850

HIGH Year: 2018

CVSS v3 Score

7.5

High

CVSS v2 Score

5.0

Medium

Weakness Type

CWE-20

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Vulnerability Description

A vulnerability has been identified in SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below (All versions), SIMATIC S7-400 (incl. F) CPU hardware version 5.0 (All firmware versions < V5.2), SIMATIC S7-400H CPU hardware version 4.5 and below (All versions). The affected CPUs improperly validate S7 communication packets which could cause a Denial-of-Service condition of the CPU. The CPU will remain in DEFECT mode until manual restart.

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