Is CVE-2019-5171 actively exploited?

No active exploitation of CVE-2019-5171 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-5171 be exploited remotely?

No. CVE-2019-5171 requires local access to exploit.

What is the CVSS score of CVE-2019-5171?

CVE-2019-5171 has a CVSS score of 7.8 (HIGH).

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HIGH

CVE-2019-5171

CWE-78Published: March 12, 2020· Updated: Jun 17, 2026

7.8

CVSS v3.1

Official Description

An exploitable command injection vulnerability exists in the iocheckd service ‘I/O-Check’ function of the WAGO PFC 200 Firmware version 03.02.02(14). An attacker can send specially crafted packet at 0x1ea48 to the extracted hostname value from the xml file that is used as an argument to /etc/config-tools/config_interfaces interface=X1 state=enabled ip-address=<contents of ip node> using sprintf().

NVD Source

Technical Analysis

CVE-2019-5171 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.