CVE-2022-45138Network attack vector

Unauthenticated device compromise via exposed configuration backend

Published Feb 27, 2023 · Updated Mar 10, 2025

Authentication bypass in affected WAGO controller and panel firmware allows remote attackers to compromise devices through the WBM API. The web-based management configuration backend accepts unauthenticated API calls that read and set device parameters reserved for authenticated users. Network access to an enabled WBM service is sufficient; parameter disclosure and modification can fully compromise the appliance.

CVSS severity9.8
Critical
EPSS probability0.74%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in affected WAGO controller and panel firmware allows remote attackers to compromise devices through the WBM API. The web-based management configuration backend accepts unauthenticated API calls that read and set device parameters reserved for authenticated users. Network access to an enabled WBM service is sufficient; parameter disclosure and modification can fully compromise the appliance.

The record

CVE
CVE-2022-45138
Published
Feb 27, 2023
Updated
Mar 10, 2025
Vendor
WAGO
Product
PFC200 Controller
Classifications
CWE-306, CAPEC-115, T0819
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 10, 2025Record 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=FW16 <FW22
  2. Affected versionversion=FW23

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WAGO · PFC200 Controllerversion=FW16 <FW22; version=FW23
WAGO · Touch Panel 600 Advanced Lineversion=FW16 <FW22; version=FW23
WAGO · Touch Panel 600 Marine Lineversion=FW16 <FW22; version=FW23
WAGO · Compact Controller 100version=FW16 <FW22; version=FW23
WAGO · Edge Controllerversion=FW18 <FW22; version=FW23
WAGO · Touch Panel 600 Standard Lineversion=FW16 <FW22; version=FW23
WAGO · PFC100 Controllerversion=FW16 <FW22; version=FW23

Published CVSS scores

9.8CERT@VDECVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
CAPEC-115Authentication Bypass
T0819Exploit Public-Facing Application

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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