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Pfc 200 Firmware CVE-2020-12522

CRITICAL
OS Command Injection (CWE-78)
2020-12-17 info@cert.vde.com
Command Injection Pfc 200 Firmware Pfc 100 Firmware Touch Panel 600 Standard Firmware Touch Panel 600 Advanced Firmware Touch Panel 600 Marine Firmware Wago
9.8
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
CWE-78
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization OS command sanitization, avoid shell exec
MITRE ATT&CK

2 techniques across 1 tactic: Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Impact

CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.
Exploit ScenarioDerived

A remote attacker could execute arbitrary operating system commands on the host by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.
Act Now Prioritize within 24-48h. Why: CRITICAL severity.
No patch listed yet 2.9% exploitation probability (EPSS)

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AnalysisAI

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. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified as OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host. 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. Affected products include: Wago Pfc 100 Firmware, Wago Pfc 200 Firmware, Wago Touch Panel 600 Standard Firmware, Wago Touch Panel 600 Advanced Firmware, Wago Touch Panel 600 Marine Firmware.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

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.

Threat Intelligence Overview

EPSS Score
2.9%
Top 15% exploitable
Data Quality
2 sources
Confidence: Low
NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC No
EPSS 2.9%
Patch available No
Active threat No
Deciding rule
CRITICAL severity
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

52
Low Medium High Critical
KEV: 0
EPSS: +3
CVSS: +49
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

OS Command Injection CRITICAL

OS command injection occurs when an application passes unsanitized user input directly into system shell commands.

Affected Products (CPE)NVD

cpe:2.3:o:wago:pfc_100_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:wago:pfc_200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:wago:touch_panel_600_standard_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:wago:touch_panel_600_advanced_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:wago:touch_panel_600_marine_firmware:*:*:*:*:*:*:*:*

More in Pfc 200 Firmware

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CVE-2019-5079 CRITICAL POC
9.8 Dec 18

An exploitable heap buffer overflow vulnerability exists in the iocheckd service "I/O-Check" functionality of WAGO PFC20
CVE-2019-5075 CRITICAL POC
9.8 Dec 18

An exploitable stack buffer overflow vulnerability exists in the command line utility getcouplerdetails of WAGO PFC200 F
CVE-2019-5081 CRITICAL POC
9.8 Dec 18

An exploitable heap buffer overflow vulnerability exists in the iocheckd service ''I/O-Chec'' functionality of WAGO PFC

CVE-2019-5074 CRITICAL
9.8 Dec 18

An exploitable stack buffer overflow vulnerability exists in the iocheckd service ''I/O-Check'' functionality of WAGO PF
CVE-2019-5073 MEDIUM POC
5.3 Dec 18

An exploitable information exposure vulnerability exists in the iocheckd service "I/O-Check" functionality of WAGO PFC20
CVE-2019-5080 CRITICAL
9.1 Dec 18

An exploitable denial-of-service vulnerability exists in the iocheckd service "I/O-Check" functionality of WAGO PFC 200

CVE-2019-5078 CRITICAL
9.1 Dec 18

An exploitable denial of service vulnerability exists in the iocheckd service "I/O-Check" functionality of WAGO PFC200 F
CVE-2019-5077 CRITICAL
9.1 Dec 18

An exploitable denial-of-service vulnerability exists in the iocheckd service ‘’I/O-Chec’’ functionality of WAGO PFC 200

Same weakness CWE-78 – OS Command Injection

View all
CVE-2019-15107 CRITICAL POC
9.8
CVE-2024-51378 CRITICAL POC
9.8
CVE-2014-6271 CRITICAL POC
9.8
CVE-2018-11138 CRITICAL POC
9.8
CVE-2014-6278 HIGH POC
8.8
CVE-2020-9054 CRITICAL POC
9.8
CVE-2017-6334 HIGH POC
8.8
CVE-2024-50603 CRITICAL POC
10.0

Same technique Command Injection

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CVE-2024-21887 CRITICAL POC
9.1
CVE-2016-3081 HIGH POC
8.1
CVE-2012-1823 CRITICAL POC
9.8
CVE-2016-1555 CRITICAL POC
9.8
CVE-2024-55956 CRITICAL POC
9.8

References

Advisories & patches
REF https://cert.vde.com/en-us/advisories/vde-2020-045

Search Externally

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