Which products and versions are affected by CVE-2026-58115?

Affected: SIMATIC IoT2050 Advanced. The full list is in the CVE brief.

Is CVE-2026-58115 being exploited in the wild?

It is exploited in the wild, listed in Industry KEV feed since Oct 30, 2026.

Is CVE-2026-58115 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2026-58115?

No public exploit code is known.

Is there a fix for CVE-2026-58115?

Fixed versions are available, including SIMATIC IoT2050 Advanced V4.3.4.1.

How urgently should CVE-2026-58115 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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On CISA KEVCritical

CVE-2026-58115SIMATIC IoT2050 Advanced Missing Authentication

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.

Published Aug 11, 2026 · Updated Oct 23, 2026

Key Facts

Patch immediately

CVE-2026-58115 is a critical-severity vulnerability (CVSS 10.0 v4) affecting SIMATIC IoT2050 Advanced.
It is exploited in the wild, listed in Industry KEV feed since Oct 30, 2026. No public exploit code is known.
EPSS estimates a 1.0% probability of exploitation in the next 30 days.
Fixed versions are available, including SIMATIC IoT2050 Advanced V4.3.4.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Scores

CVSS v4

10.0

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

EPSS (30-day exploit likelihood)

1.0%

Higher than 61.3% of all scored CVEs

Exploit maturity

Exploited (KEV)

ATLAS score

45/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Oct 30, 2026

80 days after publication

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Exploited (KEV)

Public exploit code

Proof-of-concept links

In-the-wild evidence

Reports of active use

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). 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.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
Industry KEV feed	Oct 30, 2026	n/a	Not reported

Affected Products

1 affected entries in total

Product	Affected versions	Fixed in
SIMATIC IoT2050 Advanced	See advisory	V4.3.4.1

Patched Releases

SIMATIC IoT2050 Advanced

V4.3.4.1

Timeline

Publicly disclosed
Aug 11, 2026
Last updated
Oct 23, 2026
Added to Industry KEV feed
Oct 30, 2026

Weakness Type

CWE-306 Missing Authentication for Critical Functionality

References

othercert-portal.siemens.com · ssa-834709.html

FAQ

Common Questions.

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).
Affected: SIMATIC IoT2050 Advanced. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Oct 30, 2026.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including SIMATIC IoT2050 Advanced V4.3.4.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Is CVE-2026-58115 On Your Attack Surface?

Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.