Vulnerability record · CVE-2019-5160 · published 11 March 2020

CVE-2019-5160: Wago pfc200 firmware vulnerability

Wago · Pfc200 Firmware

An exploitable improper host validation vulnerability exists in the Cloud Connectivity functionality of WAGO PFC200 Firmware versions 03.02.02(14), 03.01.07(13), and 03.00.39(12). A specially crafted HTTPS POST request can cause the software to connect to an unauthorized host, resulting in unauthorized access to firmware update functionality. An attacker can send an authenticated HTTPS POST request to direct the Cloud Connectivity software to connect to an attacker controlled Azure IoT Hub node.

9.1 CVSS 3.1 Critical EPSS 2.7% · top 14.8%

9.1CVSS 3.1 base score, v2 6.5

2.7%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

2References, 2 tagged exploit

17 Jun 2026Last modified by NVD

Description

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Pfc200 Firmware Wago

References

Link	Tags
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0953	ExploitThird Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0953	ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2023-1698WAGO Controllers OS Command Injection Allows Unauthenticated User CreationMultiple WAGO controller and touch panel firmware products contain an OS command injection flaw (CWE-78) that lets an unauthenticated, remote attacke…EPSS 82%analysed15 May 2023 9.8CVE-2022-45138Wago 751-9301 firmware missing authentication for critical function vulnerabilityThe configuration backend of the web-based management can be used by unauthenticated users, although only authenticated users should be able to use t…EPSS 0.74%27 Feb 2023 9.8CVE-2022-45140Wago 751-9301 firmware missing authentication for critical function vulnerabilityThe configuration backend allows an unauthenticated user to write arbitrary data with root privileges to the storage, which could lead to unauthentic…EPSS 1.1%27 Feb 2023 9.8CVE-2019-5082Wago pfc200 firmware out-of-bounds write vulnerabilityAn exploitable heap buffer overflow vulnerability exists in the iocheckd service I/O-Check functionality of WAGO PFC200 Firmware version 03.01.07(13)…EPSS 3.3%8 Jan 2020 9.8CVE-2018-5459Wago pfc200 firmware improper authentication vulnerabilityAn Improper Authentication issue was discovered in WAGO PFC200 Series 3S CoDeSys Runtime versions 2.3.X and 2.4.X. An attacker can execute different …EPSS 2.7%13 Feb 2018 9.1CVE-2019-5161Wago pfc200 firmware insufficient verification of data authenticity vulnerabilityAn exploitable remote code execution vulnerability exists in the Cloud Connectivity functionality of WAGO PFC200 versions 03.02.02(14), 03.01.07(13),…EPSS 2.5%11 Mar 2020 9.1CVE-2016-9362Wago pfc200 firmware improper authentication vulnerabilityAn issue was discovered in WAGO 750-8202/PFC200 prior to FW04 (released August 2015), WAGO 750-881 prior to FW09 (released August 2016), and WAGO 075…EPSS 2.1%13 Feb 2017 7.8CVE-2019-5184Wago pfc200 firmware double free vulnerabilityAn exploitable double free vulnerability exists in the iocheckd service "I/O-Check" functionality of WAGO PFC 200. A specially crafted XML cache file…EPSS 0.85%23 Mar 2020

Source: NIST National Vulnerability Database (record CVE-2019-5160), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.