Siemens SIMATIC IoT2050 Advanced
View CSAF Summary SIMATIC IoT2050 Advanced devices running Industrial OS with Node-RED installed contain a missing authentication vulnerability in the Node-RED HTTP interface that could allow an unauthenticated remote attacker to create malicious flows and execute arbitrary code on the underlying server with maximum privileges. Siemens has released a new version for SIMATIC IoT2050 Advanced and strongly recommends to update to the latest version. The following versions of Siemens SIMATIC IoT2050 Advanced are affected: SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2) vers:intdot/<4.3.4.1 CVSS Vendor Equipment Vulnerabilities v3 10 Siemens Siemens SIMATIC IoT2050 Advanced Missing Authentication for Critical Function Background Critical Infrastructure Sectors: Chemical, Critical Manufacturing, Energy, Transportation Systems Countries/Areas Deployed: Worldwide Company Headquarters Location: Germany Vulnerabilities Expand All + CVE-2026-58115 Affected devices do not enforce authentication on the Node-RED HTTP interface, allowing unauthenticated access to programming nodes that are capable of executing system commands on the server. This could allow an unauthenticated remote attacker to create malicious flows through the HTTP interface in order to execute arbitrary code on the underlying server with maximum privileges. View CVE Details Affected Products Siemens SIMATIC IoT2050 Advanced Vendor: Siemens Product Version: SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2) < V4.3.4.1 running Industrial OS with Node-RED installed Product Status: known_affected Remediations Mitigation Harden the Node-RED installation (see Node-RED User Guide) Mitigation Uninstall Node-RED Vendor fix Update to V4.3.4.1 or later version https://support.industry.siemens.com/cs/ww/en/view/109741799/ Relevant CWE: CWE-306 Missing Authentication for Critical Function Metrics CVSS Version Base Score Base Severity Vector String 3.1 10 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H Acknowledgments Siemens
CSIRTS triage
- What
- SIMATIC IoT2050 Advanced with Node-RED lacks authentication on the HTTP interface, allowing unauthenticated attackers to create malicious flows and execute arbitrary code with maximum privileges.
- Who is affected
- Siemens SIMATIC IoT2050 Advanced devices (6ES7647-0BA00-1YA2) running Industrial OS with Node-RED installed, deployed worldwide in critical infrastructure.
- Urgency
- Critical; unauthenticated remote code execution with maximum privileges allows complete device and infrastructure compromise.
- Action
- Update SIMATIC IoT2050 Advanced to version 4.3.4.1 or later immediately.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://www.cisa.gov/news-events/ics-advisories/icsa-26-237-03
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-581150.65% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 49% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-58115 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
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