Vulnerability · Published Aug 11, 2026 · Assigned by siemens
CVE-2026-58115
Critical 10.0
In plain English
A critical-severity missing authentication in SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2) from Siemens. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 60% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Siemens | SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2) | 0 – before V4.3.4-1 |
| Siemens | SIMATIC IoT2050 Basic (6ES7647-0BA00-0YA2) | 0 – before V4.3.4-1 |
| Siemens | SIMATIC IoT2050 M.2 (6ES7647-0BB00-1YA2) | 0 – before V4.3.4-1 |
| Siemens | SIMATIC IoT2050 SM (6ES7647-0CA00-1AA2) | 0 – before V4.3.4-1 |
Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H