CVE-2025-41655Network attack vector

Unauthenticated reboot via exposed URL

Published May 26, 2025 · Updated May 27, 2025

Missing authentication in Pepperl+Fuchs FB8122A.1.EL and LB8122A.1.EL before 1.3.13 allows remote attackers to reboot gateways via a URL. Pepperl+Fuchs has not published the URL, request handler, or missing authentication operation that exposes the reboot function. No authentication or user interaction is required, and a successful request interrupts gateway service by forcing a device reboot.

CVSS severity7.5
High
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Pepperl+Fuchs FB8122A.1.EL and LB8122A.1.EL before 1.3.13 allows remote attackers to reboot gateways via a URL. Pepperl+Fuchs has not published the URL, request handler, or missing authentication operation that exposes the reboot function. No authentication or user interaction is required, and a successful request interrupts gateway service by forcing a device reboot.

The record

CVE
CVE-2025-41655
Published
May 26, 2025
Updated
May 27, 2025
Vendor
Pepperl+Fuchs
Product
Profinet Gateway FB8122A.1.EL
Classifications
CWE-306, CAPEC-12, CAPEC-36, CAPEC-216, CAPEC-62, CAPEC-166, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 26, 2025CVE publishedPublication date reported by the CVE source.
  2. May 27, 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 <V1.3.13

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Pepperl+Fuchs · Profinet Gateway FB8122A.1.ELversion=0 <V1.3.13
Pepperl+Fuchs · Profinet Gateway LB8122A.1.ELversion=0 <V1.3.13

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-306Missing Authentication for Critical Function
CAPEC-12Choosing Message Identifier
CAPEC-36Using Unpublished Interfaces or Functionality
CAPEC-216Communication Channel Manipulation
CAPEC-62Cross Site Request Forgery
CAPEC-166Force the System to Reset Values
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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