Security Digest · Vulnerability record
CVE-2026-58115: Siemens SIMATIC IoT2050 Advanced vulnerability
A vulnerability has been identified in SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2) (All versions
CVSS 10.0 Critical EPSS 0.9% · p59 Check exposure
Should you act?
Critical and remotely reachable
No known exploitation yet, but it is network-reachable without credentials. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.9%, percentile 59: FIRST’s model estimates a 0.9% chance of exploitation activity in the next 30 days, higher than 59% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Editorial verdict: Check exposure. Node-RED CVE-2026-58115: Open Editors Exploited for RCE — The CVE names one Siemens device, but the attack is a single unauthenticated POST /flows request that works on any Node-RED editor reachable without adminAuth; if you have one exposed, treat it as compromised, lock it down today and rebuild.
What it is
A vulnerability has been identified in SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2) (All versions
Weakness type: CWE-306.
Product: Siemens SIMATIC IoT2050 Advanced · Assigned by: siemens · Published: 2026-08-11
Affected and fixed versions
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| Siemens | SIMATIC IoT2050 Advanced | < V4.3.4.1 |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| siemens | 3.1 | 10 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| siemens | 4.0 | 10 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Attack requirements: none
- Privileges required: none (no login)
- User interaction: none
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none, automatable yes, technical impact total.
- FIRST EPSS (model of 2026-11-04): 0.89% probability of exploitation activity in the next 30 days; percentile 59.
Timeline
- — CVE record published by siemens
- — CVE record last updated
- — erroneo.us brief: Node-RED CVE-2026-58115: Open Editors Exploited for RCE
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vulnerability records
- CVE.org record CVE-2026-58115 cve.org
- NVD entry CVE-2026-58115 nvd.nist.gov
Other references from the CVE record and advisory
- cert-portal.siemens.com cert-portal.siemens.com