CVE-2019-5106

WAGO TP600 — vulnerability CVE-2019-5106

A hard-coded encryption key vulnerability exists in the authentication functionality of WAGO e!Cockpit version 1.5.1.1. An attacker with access to communications between e!Cockpit and CoDeSyS Gateway can trivially recover the password of any user attempting to log in, in plain text.

CVSS 5.5No patch available

This record: live connection— last retrieved: 7 November 2026 at 01:34.

Vendor

WAGO

Products

TP600, PFC100, PFC200

up to version >=FW04

Published

11 March 2020

Last modified

17 June 2026

Original source information

Taken directly from NVD, CISA or the vendor — sometimes in English, unchanged from the source.

Technical description

CVSS 3.1 — vector details

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

Attack vector

LOCAL

Privileges required

LOW

User interaction

NONE

Confidentiality

High

Integrity

None

Availability

None

EPSS — Exploit Prediction Scoring System

Probability of exploitation within 30 days

0.3%

Percentile

27e

Source: FIRST.org, updated on 6 November 2026.

Patch information

* Follow the instructions in WAGO's handbook Cyber Security for Controller * Restrict network access to the device. * Do not directly connect the device to the internet * Use an encrypted VPN connection to the device * Disable unused TCP/UDP-ports Typically the e!Cockpit communication is only needed during commissioning of the programmable logic controller and not during normal operations. WAGO highly recommends disabling the TCP Port 11740 and UDP Port 1740 after commissioning or using an encrypted VPN connection to the device.

IACS Radar assessment

Our own interpretation and context for the source data above.

IACS Radar assessment

Our own interpretation and context for this vulnerability — not an official source.

IACS Radar priority score

46/ 100

Based on CVSS 5.5, EPSS 0.3%, industrial relevance 75/100.

Combines CVSS, EPSS, KEV status, industrial relevance and exposure relevance — a complement to, not a replacement for, the individual scores below and above.

Conditions for exploitation

•Local or adjacent access to the device is required.
•Limited user privileges are required.
•No user interaction required.

Operational impact & energy relevance

Limited impact on availability; the risk lies mainly with confidentiality or integrity of process data.

Assessed as relevant to the energy sector based on: Vermeld in een officiële CISA ICS Advisory, wat directe relevantie voor industriële besturingssystemen bevestigt. Productbeschrijving komt overeen met de categorie "protocol-gateway", een typisch OT/ICS-componenttype. Vendor "WAGO" is a known supplier of equipment for the energy sector.

Recommended defensive measures

•Change default or hardcoded credentials and restrict access to the management interface.
•Restrict network access to the affected device to a dedicated OT management segment.
•Implement network segmentation in line with zones and conduits (IEC 62443-3-2).
•Monitor for abnormal protocol traffic using an OT-aware detection system.

Industrial relevance score

75/ 100

• Mentioned in an official CISA ICS advisory, which confirms direct relevance to industrial control systems.
• Product description matches the category "protocol-gateway", a typical OT/ICS component type.
• Vendor "WAGO" is a known supplier of equipment for the energy sector.

Automatically classified as industrially relevant based on CISA/NVD signals (see reasons).

Classified by IACS Radar-analysepijplijn (geautomatiseerd) on 7 November 2026.

IEC 62443 mapping

IEC 62443-4-2FR1 · Identificatie- en authenticatiebeheer

Automatic IACS Radar assessment based on the reported CWE weakness classification; not an official certification statement.

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