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ExploitedNot in CISA KEV yetFix availableAwaiting NVD analysis

CVE-2026-58115

Exploitation confirmed. First attested on 2026-11-03 by GCVE · enisa-cnw-kev, GCVE · previdian.

  • Published2026-08-11
  • WeaknessCWE-306

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2026-08-1112:20CVE publishedCNA
  2. 2026-08-1113:19CVE publishedNVD
  3. 2026-11-03Listed as exploited by GCVEGCVE
  4. 2026-11-03Reported as exploited by ENISA (EUVD)ENISA EUVD
  5. 2026-11-0308:11Exploitation first reportedGCVE
  6. 2026-11-0322:42First public proof of conceptPoC-in-GitHub

Versions per branch

Products declared by the CNA

As siemens, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.

  • Siemens SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2)other versions: unknown
    Affected
    • < V4.3.4-1fixed in V4.3.4-1custom
  • Siemens SIMATIC IoT2050 Basic (6ES7647-0BA00-0YA2)other versions: unknown
    Affected
    • < V4.3.4-1fixed in V4.3.4-1custom
  • Siemens SIMATIC IoT2050 M.2 (6ES7647-0BB00-1YA2)other versions: unknown
    Affected
    • < V4.3.4-1fixed in V4.3.4-1custom
  • Siemens SIMATIC IoT2050 SM (6ES7647-0CA00-1AA2)other versions: unknown
    Affected
    • < V4.3.4-1fixed in V4.3.4-1custom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-04

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • ICSA-26-237-03 CISA1 known affected

    Siemens SIMATIC IoT2050 Advanced

    SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2) < V4.3.4.1 running Industrial OS with Node-RED installed

  • SSA-834709 Siemens ProductCERT4 known affected

    SSA-834709: Missing Authentication Vulnerability in Node-RED on SIMATIC IoT2050 with Industrial OS

    SIMATIC IoT2050 Advanced (6ES7647-0BA00-1YA2) < V4.3.4-1 running Industrial OS with Node-RED installed · SIMATIC IoT2050 Basic (6ES7647-0BA00-0YA2) < V4.3.4-1 running Industrial OS with Node-RED installed · SIMATIC IoT2050 M.2 (6ES7647-0BB00-1YA2) < V4.3.4-1 running Industrial OS with Node-RED installed · +1 more

Full record on NVD

Fix

  1. Vendor fix CISA ICSA-26-237-03 · 1 productUpdate to V4.3.4.1 or later version
  2. Vendor fix Siemens ProductCERT SSA-834709 · 3 productsUpdate to V4.3.4-1 or later version
  3. Mitigation from the vendor CISA ICSA-26-237-03 · 1 productHarden the Node-RED installation (see Node-RED User Guide)
  4. Mitigation from the vendor CISA ICSA-26-237-03 · 1 productUninstall Node-RED
  5. Mitigation from the vendor Siemens ProductCERT SSA-834709 · 4 productsHarden the Node-RED installation (see Node-RED User Guide)
  6. Mitigation from the vendor Siemens ProductCERT SSA-834709 · 4 productsUninstall Node-RED

Detection

read 2026-11-04 17:56 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS 4.0 vector
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
2026-08-11
Last Modified
2026-11-04
NVD status
Awaiting Analysis
GitHub Advisory
GHSA-mmh6-f99q-64fh

Frequently asked questions

What is CVE-2026-58115?

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.

Is CVE-2026-58115 actively exploited?

Active exploitation of CVE-2026-58115 has not been confirmed. Its EPSS score was 0.9% on 2026-11-07, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-58115?

CVE-2026-58115 has a CVSS v3 base score of 10 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

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