CVE-2020-6090Network attack vector

Root code execution via unsigned software packages

Published Jun 11, 2020 · Updated Aug 4, 2024

Improper privilege management in WAGO PFC200 Controller 03.03.10(15) allows remote authenticated users to execute code as root via WBM. WBM accepts an unsigned opkg .ipk software package, and activate_download invokes opkg with sudo so package control scripts run as root. WBM administrator access is required; exploitation crosses the documented separation between web accounts and Linux users and permits system-service replacement.

CVSS severity9.1
Critical
EPSS probability2.06%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper privilege management in WAGO PFC200 Controller 03.03.10(15) allows remote authenticated users to execute code as root via WBM. WBM accepts an unsigned opkg .ipk software package, and activate_download invokes opkg with sudo so package control scripts run as root. WBM administrator access is required; exploitation crosses the documented separation between web accounts and Linux users and permits system-service replacement.

The record

CVE
CVE-2020-6090
Published
Jun 11, 2020
Updated
Aug 4, 2024
Vendor
WAGO
Product
PFC200 Controller
Classifications
CWE-269, CWE-345, T1068
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jun 11, 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

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Is a vulnerable build present?

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

  1. Affected versionversion=WAGO PFC 200 03.03.10(15)

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

WAGO · PFC200 Controllerversion=WAGO PFC 200 03.03.10(15)

Published CVSS scores

7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
9.1Cisco TalosCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
9.0NIST NVDAV:N/AC:L/Au:S/C:C/I:C/A:C

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
CWE-345Insufficient Verification of Data Authenticity
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

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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