CVE-2019-5157Public exploitNetwork attack vector

Authenticated command execution via unescaped firmware timeout

Published Mar 10, 2020 · Updated Aug 4, 2024

Command injection in WAGO PFC200 Firmware 03.00.39(12), 03.01.07(13), and 03.02.02(14) allows remote authenticated users to execute OS commands. The Cloud Connectivity firmware-update path stores TimeoutUnconfirmed, appends it unescaped to a settimeout shell command, and passes the result to system(). Administrative Web-Based Management access and a configured cloud account are required, and injected commands run as the iot user.

CVSS severity7.2
High
EPSS probability4.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Command injection in WAGO PFC200 Firmware 03.00.39(12), 03.01.07(13), and 03.02.02(14) allows remote authenticated users to execute OS commands. The Cloud Connectivity firmware-update path stores TimeoutUnconfirmed, appends it unescaped to a settimeout shell command, and passes the result to system(). Administrative Web-Based Management access and a configured cloud account are required, and injected commands run as the iot user.

The record

CVE
CVE-2019-5157
Published
Mar 10, 2020
Updated
Aug 4, 2024
Vendor
WAGO
Product
WAGO PFC200 Firmware
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 10, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=version 03.00.39(12)
  2. Affected versionversion=version 03.01.07(13)
  3. Affected versionversion=version 03.02.02(14)

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

WAGO · WAGO PFC200 Firmwareversion=version 03.00.39(12); version=version 03.01.07(13); version=version 03.02.02(14)

Published CVSS scores

7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P
7.2Cisco TalosCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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