Is CVE-2019-5172 actively exploited?

No active exploitation of CVE-2019-5172 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-5172 be exploited remotely?

No. CVE-2019-5172 requires local access to exploit.

What is the CVSS score of CVE-2019-5172?

CVE-2019-5172 has a CVSS score of 7.8 (HIGH).

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HIGH

CVE-2019-5172

CWE-78Published: March 11, 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 a specially crafted packet to trigger the parsing of this cache file. At 0x1e840 the extracted ntp value from the xml file is used as an argument to /etc/config-tools/config_sntp time-server-%d=<contents of ntp node> using sprintf(). This command is later executed via a call to system(). This is done in a loop and there is no limit to how many ntp entries will be parsed from the xml file.

NVD Source

Technical Analysis

CVE-2019-5172 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.