Security readout for executives and security teams
Plain-English summary
Affected Siemens industrial gateways expose Node-RED programming functions without authentication. A remote attacker who can reach the HTTP interface could alter automation flows and run arbitrary code with maximum server privileges, risking operational disruption, data compromise, and device takeover.
Executive priority
Prioritise immediate containment and expedited updating of reachable affected devices. A compromise could grant maximum privileges on an industrial gateway and affect confidentiality, integrity, and availability. Coordinate remediation with operations to avoid unsafe or unplanned disruption, while isolating interfaces that cannot be promptly updated.
Technical view
CVE-2026-58115 is a CWE-306 missing-authentication vulnerability affecting SIMATIC IoT2050 Advanced 6ES7647-0BA00-1YA2 before V4.3.4.1 when running Industrial OS with Node-RED installed. Network-accessible programming nodes can execute system commands without credentials. CVSS 3.1 is 10.0, with no privileges or user interaction required.
Likely exposure
Exposure requires the specified IoT2050 model, an Industrial OS version earlier than V4.3.4.1, Node-RED installed, and attacker network access to its HTTP interface. Internet exposure is especially concerning, but reachable internal devices are also at risk. The bundle does not identify deployment prevalence.
Exploitation context
The supplied record is not listed as KEV and provides no evidence of active exploitation. Nevertheless, exploitation conditions are unusually favorable: network access, low complexity, no authentication, and no user interaction. Treat reachable affected interfaces as urgent exposure without assuming attacks have occurred.
Researcher notes
The vulnerability crosses security scope according to the CVSS vector and permits maximum-privilege code execution through unauthenticated Node-RED programming functionality. The supplied sources do not describe affected configurations beyond the named model, Industrial OS, Node-RED presence, and version boundary; they also provide no exploit telemetry or indicators of compromise.
Mitigation direction
- Upgrade affected devices to Industrial OS V4.3.4.1 or later, following Siemens guidance.
- Restrict Node-RED HTTP access to explicitly authorised management networks and administrators.
- Remove or disable Node-RED where it is not operationally required.
- Review Siemens SSA-834709 for additional vendor-prescribed protections and update instructions.
Validation and detection
- Inventory SIMATIC IoT2050 Advanced devices matching part number 6ES7647-0BA00-1YA2.
- Confirm each device's Industrial OS version and whether Node-RED is installed.
- Identify networks and external paths that can reach the Node-RED HTTP interface.
- Verify upgraded devices report V4.3.4.1 or later and retain intended access restrictions.
- Review device and network logs for unexpected Node-RED changes or administrative activity.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-306: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-58115 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 10 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
2 official scoresWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H3.96siemensCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H——siemensVulnerability scoring details
Base CVSS 4.0 score
10CriticalVector: 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
Base CVSS 3.1 score
10CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://cert-portal.siemens.com/productcert/html/ssa-834709.htmlCVE reference, siemens
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Missing Authentication for Critical Function
Missing Authentication for Critical Function represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.