CVE-2026-58115
Unauthenticated RCE via Node-RED on Siemens SIMATIC IoT2050 (<=V4.3.4.1)
Is CVE-2026-58115 being exploited?
Not confirmed. CVE-2026-58115 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.65% probability of exploitation in the next 30 days.
How severe is CVE-2026-58115?
CVE-2026-58115 is rated Critical with a CVSS score of 10.0. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-58115?
Yes. A fix has been recorded for CVE-2026-58115. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-58115 affect?
CVE-2026-58115 affects Siemens SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2) running Industrial OS with Node-RED < V4.3.4.1. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-58115?
Upgrade to V4.3.4.1; block/restrict Node-RED HTTP; isolate affected devices.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated remote attacker can create Node-RED flows to execute arbitrary system commands with maximum privileges (remote code execution).
Immediate action required
- affected< V4.3.4.1
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.