How severe is CVE-2026-58115?

CVE-2026-58115 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-58115 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-58115?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2026-58115 published?

CVE-2026-58115 was published on 2026-08-11 and last updated on 2026-08-12.

CVE-2026-58115

CVE-2026-58115 is a critical-severity vulnerability with a CVSS 3.x base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
CVSS v4: 10.0
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Published: 2026-08-11
Last modified: 2026-08-12

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.

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). 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.
How severe is CVE-2026-58115?: CVE-2026-58115 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-58115 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-58115?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2026-58115 published?: CVE-2026-58115 was published on 2026-08-11 and last updated on 2026-08-12.

References

https://cert-portal.siemens.com/productcert/html/ssa-834709.html

Other CWE-306 (Missing Authentication for Critical Function) vulnerabilities

CVE-2026-20357 — Critical (CVSS 10.0): As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Crosswork engineering team…
CVE-2026-63508 — Critical (CVSS 10.0): Missing authentication for critical function in Microsoft Planetary Computer Pro allows an unauthorized attacker to…
CVE-2026-56163 — Critical (CVSS 10.0): Missing authentication for critical function in Microsoft Azure Kubernetes Service allows an unauthorized attacker to…
CVE-2026-64812 — Critical (CVSS 10.0): In JetBrains IntelliJ IDEA before 2026.2 unauthorized input injection was possible in a Remote Development session
CVE-2026-60644 — Critical (CVSS 10.0): Vulnerability in the Oracle WebCenter Content product of Oracle Fusion Middleware (component: Web Content Management).…
CVE-2026-60389 — Critical (CVSS 10.0): Vulnerability in the Service Delivery Platform product of Oracle Fusion Middleware (component: Messaging Enabler).…

Browse all CWE-306 (Missing Authentication for Critical Function) vulnerabilities →