CVE-2026-58115Network attack vector

Unauthenticated code execution via exposed Node-RED flows

Published Aug 11, 2026 · Updated Aug 11, 2026

Missing authentication in Siemens SIMATIC IOT2050 Advanced before 4.3.4.1 allows remote attackers to execute arbitrary code. The Node-RED HTTP interface exposes programming nodes without enforcing authentication, so a crafted flow can invoke system commands on the underlying server. Exposure requires Industrial OS with Node-RED installed and grants maximum privileges, allowing complete control of the gateway.

CVSS severity10.0
Critical
EPSS probability0.65%
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 Siemens SIMATIC IOT2050 Advanced before 4.3.4.1 allows remote attackers to execute arbitrary code. The Node-RED HTTP interface exposes programming nodes without enforcing authentication, so a crafted flow can invoke system commands on the underlying server. Exposure requires Industrial OS with Node-RED installed and grants maximum privileges, allowing complete control of the gateway.

The record

CVE
CVE-2026-58115
Published
Aug 11, 2026
Updated
Aug 11, 2026
Vendor
Siemens
Product
SIMATIC IOT2050 Advanced
Classifications
CWE-306, T1059, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 11, 2026Record 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 <V4.3.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Siemens · SIMATIC IOT2050 Advancedversion=0 <V4.3.4.1

Published CVSS scores

10.0Siemens ProductCERTCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
10.0Siemens ProductCERTCVSS: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.

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
T1059Command and Scripting Interpreter
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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