CVE-2019-5075

Name: CVE-2019-5075
Creator: NVD / NIST
Published: 2019-12-18T21:15:14.007+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 3.87%

Last modified Jun 17, 2026

CVE-2019-5075 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An exploitable stack buffer overflow vulnerability exists in the command line utility getcouplerdetails of WAGO PFC200 Firmware versions 03.01.07(13) and 03.00.39(12), and WAGO PFC100 Firmware version 03.00.39(12). A specially crafted set of packets sent to the iocheckd service "I/O-Check" can cause a stack buffer overflow in the sub-process getcouplerdetails, resulting in code execution. EPSS estimates a 3.87% chance of exploitation in the next 30 days.

Description

An exploitable stack buffer overflow vulnerability exists in the command line utility getcouplerdetails of WAGO PFC200 Firmware versions 03.01.07(13) and 03.00.39(12), and WAGO PFC100 Firmware version 03.00.39(12). A specially crafted set of packets sent to the iocheckd service "I/O-Check" can cause a stack buffer overflow in the sub-process getcouplerdetails, resulting in code execution. An attacker can send unauthenticated packets to trigger this vulnerability.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

3.87%

88.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Wago	Pfc 200 Firmware	03.00.39\(12\)
Wago	Pfc 200 Firmware	03.01.07\(13\)
Wago	Pfc 100 Firmware	03.00.39\(12\)

References

https://talosintelligence.com/vulnerability_reports/TALOS-2019-0864Exploit, Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0864Exploit, Third Party Advisory

Timeline

Published: Dec 18, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-5075?

How severe is CVE-2019-5075?

CVE-2019-5075 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.87% probability of exploitation in the next 30 days.

How do I fix CVE-2019-5075?

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-2019-5075?

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

Scan your code now

Source: NVD / NIST