CVE-2022-45140Known exploitationPublic exploitNetwork attack vector

Unauthenticated code execution via root file write

Published Feb 27, 2023 · Updated Mar 10, 2025

Missing authentication in WAGO controller firmware allows remote attackers to write arbitrary files as root through the configuration backend. The network_config API forwards attacker-controlled --error-msg-dst and file-content arguments to a root-privileged backend operation without authentication. Network access to the web management service is sufficient; the write primitive enables persistent configuration tampering and remote code execution.

CVSS severity9.8
Critical
EPSS probability1.07%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in WAGO controller firmware allows remote attackers to write arbitrary files as root through the configuration backend. The network_config API forwards attacker-controlled --error-msg-dst and file-content arguments to a root-privileged backend operation without authentication. Network access to the web management service is sufficient; the write primitive enables persistent configuration tampering and remote code execution.

The record

CVE
CVE-2022-45140
Published
Feb 27, 2023
Updated
Mar 10, 2025
Vendor
WAGO
Product
PFC200 Controller
Classifications
CWE-306, T0866
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=FW16 <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 exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T0866Exploitation of Remote Services

Public exploit references

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

Reported exploitation

Technologies

Your stack

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Your stack

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