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Vulnerability record · CVE-2013-5709 · published 17 September 2013

CVE-2013-5709: Siemens scalance x-200 series firmware vulnerability

Siemens · Scalance X 200 Series Firmware

The authentication implementation in the web server on Siemens SCALANCE X-200 switches with firmware before 5.0.0 does not use a sufficient source of entropy for generating values of random numbers, which makes it easier for remote attackers to hijack sessions by predicting a value.

8.3 CVSS 2.0 High EPSS 3.0% · top 13.2% CWE-189 · CWE-189
8.3CVSS 2.0 base score
3.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
9Affected product versions listed by NVD
6References
16 Jun 2026Last modified by NVD

Description

The authentication implementation in the web server on Siemens SCALANCE X-200 switches with firmware before 5.0.0 does not use a sufficient source of entropy for generating values of random numbers, which makes it easier for remote attackers to hijack sessions by predicting a value.

AV:N/AC:M/Au:N/C:P/I:P/A:C

Affected products

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

References

LinkTags
http://ics-cert.us-cert.gov/advisories/ICSA-13-254-01 US Government Resource
http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-850708.pdf Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-850708.pdf
http://ics-cert.us-cert.gov/advisories/ICSA-13-254-01 US Government Resource
http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-850708.pdf Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-850708.pdf

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Related vulnerabilities

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

10.0CVE-2013-5944Siemens scalance x-200 series firmware improper authentication vulnerabilityThe integrated web server on Siemens SCALANCE X-200 switches with firmware before 4.5.0 and X-200IRT switches with firmware before 5.1.0 does not pro…EPSS 3.2%8.0CVE-2013-3633Siemens scalance x200irt firmware permissions and access controls vulnerabilityA vulnerability has been identified in SCALANCE X-200 switch family (incl. SIPLUS NET variants) (Versions < V5.0.0 for CVE-2013-3633 and versions < V…EPSS 1.2%7.5CVE-2013-3634Siemens scalance x200irt firmware improper input validation vulnerabilityA vulnerability has been identified in SCALANCE X-200 switch family (incl. SIPLUS NET variants) (Versions < V5.0.0 for CVE-2013-3633 and versions < V…EPSS 1.4%6.8CVE-2015-1049Siemens scalance x-200 series firmware improper input validation vulnerabilityThe web server on Siemens SCALANCE X-200IRT switches with firmware before 5.2.0 allows remote attackers to hijack sessions via unspecified vectors.EPSS 1.7%8.4CVE-2013-2094Linux Kernel perf_swevent_init Integer Type Flaw Enables Local Privilege EscalationThe perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, allowing a local user to…KEVEPSS 48%analysed

Source: NIST National Vulnerability Database (record CVE-2013-5709), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.