CVE-2025-41672Network attack vector

Unauthenticated takeover via shared JWT signing certificates

Published Jul 7, 2025 · Updated Jul 7, 2025

Authentication bypass in WAGO Device Sphere 1.0.0 allows remote attackers to gain full control of the tool and connected devices. Each installation deploys identical certificates for JWT encryption and signing instead of generating unique keys, enabling forged valid tokens. No credentials or user interaction are required; a holder of the shared private key can impersonate users across installations.

CVSS severity10.0
Critical
EPSS probability0.36%
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 WAGO Device Sphere 1.0.0 allows remote attackers to gain full control of the tool and connected devices. Each installation deploys identical certificates for JWT encryption and signing instead of generating unique keys, enabling forged valid tokens. No credentials or user interaction are required; a holder of the shared private key can impersonate users across installations.

The record

CVE
CVE-2025-41672
Published
Jul 7, 2025
Updated
Jul 7, 2025
Vendor
WAGO
Product
WAGO Device Sphere
Classifications
CWE-1188, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 7, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 7, 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=1.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WAGO · WAGO Device Sphereversion=1.0.0

Published CVSS scores

10.0CERT VDECVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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.

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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-1188Initialization of a Resource with an Insecure Default
T1190Exploit 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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