CVE-2018-25108Network attack vector

Control-cycle disruption via unbounded network packet processing

Published Jan 16, 2025 · Updated Jan 16, 2025

Resource exhaustion in affected WAGO 750-8xx controller firmware allows remote attackers to disrupt control-cycle timing with network floods. Network packet processing does not adequately limit resource consumption, allowing packet floods to consume enough CPU capacity to influence the configured cycle time. No authentication or user interaction is required; normal operation resumes after the network load is removed, bounding the impact to a transient service interruption.

CVSS severity7.5
High
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in affected WAGO 750-8xx controller firmware allows remote attackers to disrupt control-cycle timing with network floods. Network packet processing does not adequately limit resource consumption, allowing packet floods to consume enough CPU capacity to influence the configured cycle time. No authentication or user interaction is required; normal operation resumes after the network load is removed, bounding the impact to a transient service interruption.

The record

CVE
CVE-2018-25108
Published
Jan 16, 2025
Updated
Jan 16, 2025
Vendor
WAGO
Product
750-8100 Controller PFC100
Classifications
CWE-770, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Jan 16, 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=0 <=02.05.23(08)

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WAGO · 750-8100 Controller PFC100version=0 <=02.05.23(08)
WAGO · 750-889 Controller KNX IPversion=0 <=01.07.13(10)
WAGO · 750-831 Controller BACnet/IPversion=0 <=01.02.29(09)
WAGO · 750-880 Controller ETHversion=0 <=01.07.03(10)

Published CVSS scores

7.5CERT@VDECVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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-770Allocation of Resources Without Limits or Throttling
T1499Endpoint Denial of Service

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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