CVE-2019-10927
mediumpriority · track · 26EPSS 0.012 · 67 %ileEUUSEPSS · scored 2026-10-27
A vulnerability has been identified in SCALANCE SC-600 (V2.0), SCALANCE XB-200 (V4.1), SCALANCE XC-200 (V4.1), SCALANCE XF-200BA (V4.1), SCALANCE XP-200 (V4.1), SCALANCE XR-300WG (V4.1). An authenticated attacker with network access to to port 22/tcp of an affected device may cause a Denial-of-Service condition. The security vulnerability could be exploited by an authenticated attacker with network access to the affected device. No user interaction is required to exploit this vulnerability. The vulnerability impacts the availability of the affected device.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedSCALANCE SC-600cisa_csaf_ot
Update to V2.0.1 https://support.industry.siemens.com/cs/ww/en/view/109769665
- FixedSCALANCE XB-200cisa_csaf_ot
Update to V4.2 https://support.industry.siemens.com/cs/ww/en/view/109779919/
- FixedSCALANCE XC-200cisa_csaf_ot
Update to V4.2 https://support.industry.siemens.com/cs/ww/en/view/109779919/
- FixedSCALANCE XF-200BAcisa_csaf_ot
Update to V4.2 https://support.industry.siemens.com/cs/ww/en/view/109779919/
- FixedSCALANCE XP-200cisa_csaf_ot
Update to V4.2 https://support.industry.siemens.com/cs/ww/en/view/109779919/
- FixedSCALANCE XR-300WGcisa_csaf_ot
Update to V4.2 https://support.industry.siemens.com/cs/ww/en/view/109779919/
- MitigationSCALANCE XB-200cisa_csaf_ot
Protect access to port 22/tcp (using the build-in firewall for SCALANCE SC-600)
- MitigationSCALANCE XC-200cisa_csaf_ot
Protect access to port 22/tcp (using the build-in firewall for SCALANCE SC-600)
- MitigationSCALANCE XF-200BAcisa_csaf_ot
Protect access to port 22/tcp (using the build-in firewall for SCALANCE SC-600)
- MitigationSCALANCE XP-200cisa_csaf_ot
Protect access to port 22/tcp (using the build-in firewall for SCALANCE SC-600)
- MitigationSCALANCE XR-300WGcisa_csaf_ot
Protect access to port 22/tcp (using the build-in firewall for SCALANCE SC-600)
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (21)
Products and version ranges known to be affected.
- siemens scalance xb-200 firmware= 4.1nvdUScpe:2.3:o:siemens:scalance_xb-200_firmware:*:*:*:*:*:*:*:*
- siemens scalance xc-200 firmware= 4.1nvdUScpe:2.3:o:siemens:scalance_xc-200_firmware:*:*:*:*:*:*:*:*
- siemens scalance xf-200ba firmware= 4.1nvdUScpe:2.3:o:siemens:scalance_xf-200ba_firmware:*:*:*:*:*:*:*:*
- siemens scalance xp-200 firmware= 4.1nvdUScpe:2.3:o:siemens:scalance_xp-200_firmware:*:*:*:*:*:*:*:*
advisories (1)
Vendor and ecosystem advisories describing this.
- ICSA-19-227-03Siemens SCALANCE Products (Update A)2019-08-13icsa · cisa_csaf_otUS
As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://cert-portal.siemens.com/productcert/pdf/ssa-671286.pdfcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2019-10927cnnvd
- https://us-cert.cisa.gov/ics/advisories/icsa-19-227-03cnnvd
- https://www.auscert.org.au/bulletins/ESB-2019.3149/cnnvd
- https://www.us-cert.gov/ics/advisories/icsa-19-227-03cnnvd
- https://cert-portal.siemens.com/productcert/pdf/ssa-671286.pdfenisa_euvd
- https://cert-portal.siemens.com/productcert/pdf/ssa-671286.pdfPatchVendor Advisorynvd
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