CVE-2019-5134

Name: CVE-2019-5134
Creator: NVD / NIST
Published: 2020-03-11T22:27:40.177+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.20%

Last modified Jun 17, 2026

CVE-2019-5134 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An exploitable regular expression without anchors vulnerability exists in the Web-Based Management (WBM) authentication functionality of WAGO PFC200 versions 03.00.39(12) and 03.01.07(13), and WAGO PFC100 version 03.00.39(12). A specially crafted authentication request can bypass regular expression filters, resulting in sensitive information disclosure.. EPSS estimates a 2.20% chance of exploitation in the next 30 days.

Description

An exploitable regular expression without anchors vulnerability exists in the Web-Based Management (WBM) authentication functionality of WAGO PFC200 versions 03.00.39(12) and 03.01.07(13), and WAGO PFC100 version 03.00.39(12). A specially crafted authentication request can bypass regular expression filters, resulting in sensitive information disclosure.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

2.20%

80.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Wago	Pfc200 Firmware	03.00.39\(12\)
Wago	Pfc200 Firmware	03.01.07\(13\)
Wago	Pfc100 Firmware	03.00.39\(12\)

References

https://talosintelligence.com/vulnerability_reports/TALOS-2019-0923Exploit, Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0923Exploit, Third Party Advisory

Timeline

Published: Mar 11, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-5134?

How severe is CVE-2019-5134?

CVE-2019-5134 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.20% probability of exploitation in the next 30 days.

How do I fix CVE-2019-5134?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-5134?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST