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TI-2026-41854 Aliases CVE-2026-58115GHSA-mmh6-f99q-64fh

Missing authentication in Siemens SIMATIC IoT2050 Advanced

Priority MEDIUM 51CWE-306Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.

Summary

A vulnerability has been identified in SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2) (All versions < V4.3.4-1 running Industrial OS with Node-RED installed), SIMATIC IoT2050 Basic (6ES7647-0BA00-0YA2) (All versions < V4.3.4-1 running Industrial OS with Node-RED installed), SIMATIC IoT2050 M.2 (6ES7647-0BB00-1YA2) (All versions < V4.3.4-1 running Industrial OS with Node-RED installed), SIMATIC IoT2050 SM (6ES7647-0CA00-1AA2) (All versions < V4.3.4-1 running Industrial OS with Node-RED installed). 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0089 59th percentileScored 2026-11-07
Fix Fixed SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2) (Siemens): V4.3.4-1SIMATIC IoT2050 Basic (6ES7647-0BA00-0YA2) (Siemens): V4.3.4-1+2 more products

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SiemensSIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2)before V4.3.4-1V4.3.4-1Patch availableCNA
SiemensSIMATIC IoT2050 Basic (6ES7647-0BA00-0YA2)before V4.3.4-1V4.3.4-1Patch availableCNA
SiemensSIMATIC IoT2050 M.2 (6ES7647-0BB00-1YA2)before V4.3.4-1V4.3.4-1Patch availableCNA
SiemensSIMATIC IoT2050 SM (6ES7647-0CA00-1AA2)before V4.3.4-1V4.3.4-1Patch availableCNA
  • SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2) VendorSiemens Affected before V4.3.4-1 Fixed in V4.3.4-1 Patch available CNA
  • SIMATIC IoT2050 Basic (6ES7647-0BA00-0YA2) VendorSiemens Affected before V4.3.4-1 Fixed in V4.3.4-1 Patch available CNA
  • SIMATIC IoT2050 M.2 (6ES7647-0BB00-1YA2) VendorSiemens Affected before V4.3.4-1 Fixed in V4.3.4-1 Patch available CNA
  • SIMATIC IoT2050 SM (6ES7647-0CA00-1AA2) VendorSiemens Affected before V4.3.4-1 Fixed in V4.3.4-1 Patch available CNA

Remediation

  • Fix · CNA SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2) (Siemens) Fixed in V4.3.4-1
  • Fix · CNA SIMATIC IoT2050 Basic (6ES7647-0BA00-0YA2) (Siemens) Fixed in V4.3.4-1
  • Fix · CNA SIMATIC IoT2050 M.2 (6ES7647-0BB00-1YA2) (Siemens) Fixed in V4.3.4-1
  • Fix · CNA SIMATIC IoT2050 SM (6ES7647-0CA00-1AA2) (Siemens) Fixed in V4.3.4-1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-58115
  2. 2026-10-03 Alias added: GHSA-mmh6-f99q-64fh
  3. 2026-11-04 Title updated · CNA
  4. 2026-11-04 Fix available: Siemens/SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2)@V4.3.4-1, Siemens/SIMATIC IoT2050 Basic (6ES7647-0BA00-0YA2)@V4.3.4-1, Siemens/SIMATIC IoT2050 M.2 (6ES7647-0BB00-1YA2)@V4.3.4-1 +1 · CNA

References

Other 1

  • TI-2026-20057 Authentication bypass in Fortinet FortiWeb KEVCVSS 3.1CRITICAL 9.4
  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-18911 Heap-based buffer overflow in Fortinet FortiSwitchManager KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-09686 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-07142 Code injection in Spring Framework KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-19919 Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints KEVCVSS 3.1CRITICAL 10.0
See all 2487 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences