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Vulnerability record · CVE-2019-13946 · published 11 February 2020

CVE-2019-13946: Siemens dk standard ethernet controller uncontrolled resource consumption vulnerability

Siemens · Dk Standard Ethernet Controller

Profinet-IO (PNIO) stack versions prior V06.00 do not properly limit internal resource allocation when multiple legitimate diagnostic package requests are sent to the DCE-RPC interface. This could lead to a denial of service condition due to lack of memory for devices that include a vulnerable version of the stack. The security vulnerability could be exploited by an attacker with network access to an affected device. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise the availability of the device.

7.5 CVSS 3.1 High EPSS 1.5% · top 27.5% CWE-400 · Uncontrolled resource consumption
7.5CVSS 3.1 base score, v2 7.8
1.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
52Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

Profinet-IO (PNIO) stack versions prior V06.00 do not properly limit internal resource allocation when multiple legitimate diagnostic package requests are sent to the DCE-RPC interface. This could lead to a denial of service condition due to lack of memory for devices that include a vulnerable version of the stack. The security vulnerability could be exploited by an attacker with network access to an affected device. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise the availability of the device.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

52 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://cert-portal.siemens.com/productcert/html/ssa-780073.html
https://cert-portal.siemens.com/productcert/pdf/ssa-780073.pdf Vendor Advisory
https://cert-portal.siemens.com/productcert/html/ssa-780073.html
https://cert-portal.siemens.com/productcert/pdf/ssa-780073.pdf Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2019-13946), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.