CVE-2019-5161
highpriority · track · 37OT risk · elevatedEPSS 0.025 · 85 %ileDEEUUSEPSS · scored 2026-10-27
An exploitable remote code execution vulnerability exists in the Cloud Connectivity functionality of WAGO PFC200 versions 03.02.02(14), 03.01.07(13), and 03.00.39(12). A specially crafted XML file will direct the Cloud Connectivity service to download and execute a shell script with root privileges.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
No vendor fix yet; a mitigation is available.
- Mitigationwago_psirt
Check the hashes of the Update packet, do not use update files which has a different hash then the original one Follow the instructions in WAGOs handbook Cyber Security for Controller Restrict network access to the device. Do not directly connect the device to the internet Use an encrypted VPN connection to the device Disable unused TCP/UDP-ports Use strong passwords for all user accounts, especially for administrative user accounts on the device.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.3–9.1
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (11)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- VDE-2020-010WAGO: Cloud Connectivity Remote Code Execution Vulnerability2020-03-09csaf · wago_psirtDE
An attacker needs an authorized login with administrative privileges on the device in order to exploit the herein mentioned vulnerability. The weakness allows an attacker which has admin privileges on the device to redirect to his own Azure cloud account and install malicious software with the firmware update functionality.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (4)
External citations — patches, advisories, analysis.
- https://nvd.nist.gov/vuln/detail/CVE-2019-5161cnnvd
- https://talosintelligence.com/vulnerability_reports/TALOS-2019-0954cnnvd
- https://talosintelligence.com/vulnerability_reports/TALOS-2019-0954enisa_euvd
- https://talosintelligence.com/vulnerability_reports/TALOS-2019-0954ExploitMitigationThird Party Advisorynvd
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