CVE-2019-13926

Name: CVE-2019-13926
Creator: NVD / NIST
Published: 2020-02-11T16:15:14.68+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.46%

Last modified Jun 17, 2026

CVE-2019-13926 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability has been identified in SCALANCE S602 (All versions >= V3.0 and < V4.1), SCALANCE S612 (All versions >= V3.0 and < V4.1), SCALANCE S623 (All versions >= V3.0 and < V4.1), SCALANCE S627-2M (All versions >= V3.0 and < V4.1). Specially crafted packets sent to port 443/tcp of affected devices could cause a Denial-of-Service condition of the web server. EPSS estimates a 1.46% chance of exploitation in the next 30 days.

Description

A vulnerability has been identified in SCALANCE S602 (All versions >= V3.0 and < V4.1), SCALANCE S612 (All versions >= V3.0 and < V4.1), SCALANCE S623 (All versions >= V3.0 and < V4.1), SCALANCE S627-2M (All versions >= V3.0 and < V4.1). Specially crafted packets sent to port 443/tcp of affected devices could cause a Denial-of-Service condition of the web server. A cold reboot is required to restore the functionality of the device.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.46%

70.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Siemens	Scalance S602 Firmware	>= 3.0, < 4.1
Siemens	Scalance S612 Firmware	>= 3.0, < 4.1
Siemens	Scalance S623 Firmware	>= 3.0, < 4.1
Siemens	Scalance S627-2m Firmware	>= 3.0, < 4.1

References

https://cert-portal.siemens.com/productcert/pdf/ssa-591405.pdfVendor Advisory
https://www.us-cert.gov/ics/advisories/icsa-20-042-10Third Party Advisory, US Government Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-591405.pdfVendor Advisory
https://www.us-cert.gov/ics/advisories/icsa-20-042-10Third Party Advisory, US Government Resource

Timeline

Published: Feb 11, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-13926?

How severe is CVE-2019-13926?

CVE-2019-13926 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.46% probability of exploitation in the next 30 days.

How do I fix CVE-2019-13926?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-13926?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST