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Vulnerability record · CVE-2020-12522 · published 17 December 2020

CVE-2020-12522: Wago pfc 100 firmware os command injection vulnerability

Wago · Pfc 100 Firmware

The reported vulnerability allows an attacker who has network access to the device to execute code with specially crafted packets in WAGO Series PFC 100 (750-81xx/xxx-xxx), Series PFC 200 (750-82xx/xxx-xxx), Series Wago Touch Panel 600 Standard Line (762-4xxx), Series Wago Touch Panel 600 Advanced Line (762-5xxx), Series Wago Touch Panel 600 Marine Line (762-6xxx) with firmware versions <=FW10.

9.8 CVSS 3.1 Critical EPSS 3.1% · top 12.9% CWE-78 · OS command injection
9.8CVSS 3.1 base score, v2 10.0
3.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

The reported vulnerability allows an attacker who has network access to the device to execute code with specially crafted packets in WAGO Series PFC 100 (750-81xx/xxx-xxx), Series PFC 200 (750-82xx/xxx-xxx), Series Wago Touch Panel 600 Standard Line (762-4xxx), Series Wago Touch Panel 600 Advanced Line (762-5xxx), Series Wago Touch Panel 600 Marine Line (762-6xxx) with firmware versions <=FW10.

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

Affected products

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

References

LinkTags
https://cert.vde.com/en-us/advisories/vde-2020-045 Third Party Advisory
https://cert.vde.com/en-us/advisories/vde-2020-045 Third 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%analysed9.8CVE-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%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%9.8CVE-2019-5075Wago pfc 200 firmware out-of-bounds write vulnerabilityAn exploitable stack buffer overflow vulnerability exists in the command line utility getcouplerdetails of WAGO PFC200 Firmware versions 03.01.07(13)…EPSS 3.9%9.8CVE-2019-5079Wago pfc 200 firmware out-of-bounds write vulnerabilityAn exploitable heap buffer overflow vulnerability exists in the iocheckd service "I/O-Check" functionality of WAGO PFC200 Firmware versions 03.01.07(…EPSS 3.3%9.8CVE-2019-5074Wago pfc 200 firmware out-of-bounds write vulnerabilityAn exploitable stack buffer overflow vulnerability exists in the iocheckd service ''I/O-Check'' functionality of WAGO PFC200 Firmware version 03.01.0…EPSS 3.3%9.8CVE-2019-5081Wago pfc 200 firmware out-of-bounds write vulnerabilityAn exploitable heap buffer overflow vulnerability exists in the iocheckd service ''I/O-Chec'' functionality of WAGO PFC 200 Firmware version 03.01.07…EPSS 4.5%9.1CVE-2019-5078Wago pfc 200 firmware missing authentication for critical function vulnerabilityAn exploitable denial of service vulnerability exists in the iocheckd service "I/O-Check" functionality of WAGO PFC200 Firmware versions 03.01.07(13)…EPSS 1.7%

Source: NIST National Vulnerability Database (record CVE-2020-12522), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.