Vulnerability Description
An unauthenticated remote attacker could create a permanent denial-of-service condition by sending specially crafted OSPF packets. Successful exploitation requires OSPF to be enabled on an affected device on the SCALANCE XM-400, XR-500 (All versions prior to v6.4).
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Siemens | Scalance Xm-400 Firmware | < 6.4 |
| Siemens | Scalance Xm-400 | - |
| Siemens | Scalance Xr524 Firmware | < 6.4 |
| Siemens | Scalance Xr524 | - |
| Siemens | Scalance Xr526 Firmware | < 6.4 |
| Siemens | Scalance Xr526 | - |
| Siemens | Scalance Xr528 Firmware | < 6.4 |
| Siemens | Scalance Xr528 | - |
| Siemens | Scalance Xr552 Firmware | < 6.4 |
| Siemens | Scalance Xr552 | - |
| Siemens | Scalance Xm416-4C Firmware | < 6.4 |
| Siemens | Scalance Xm416-4C | - |
| Siemens | Scalance Xm408-8C Firmware | < 6.4 |
| Siemens | Scalance Xm408-8C | - |
| Siemens | Scalance Xm408-4C Firmware | < 6.4 |
| Siemens | Scalance Xm408-4C | - |
| Siemens | Scalance Xm416-4C L3 Firmware | < 6.4 |
| Siemens | Scalance Xm416-4C L3 | - |
| Siemens | Scalance Xm408-8C L3 Firmware | < 6.4 |
| Siemens | Scalance Xm408-8C L3 | - |
Related Weaknesses (CWE)
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-116379.pdfVendor Advisory
- https://us-cert.cisa.gov/ics/advisories/icsa-21-131-10Third Party AdvisoryUS Government Resource
- https://cert-portal.siemens.com/productcert/pdf/ssa-116379.pdfVendor Advisory
- https://us-cert.cisa.gov/ics/advisories/icsa-21-131-10Third Party AdvisoryUS Government Resource
FAQ
What is CVE-2020-28393?
CVE-2020-28393 is a vulnerability with a CVSS score of 7.5 (HIGH). An unauthenticated remote attacker could create a permanent denial-of-service condition by sending specially crafted OSPF packets. Successful exploitation requires OSPF to be enabled on an affected de...
How severe is CVE-2020-28393?
CVE-2020-28393 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-28393?
Check the references section above for vendor advisories and patch information. Affected products include: Siemens Scalance Xm-400 Firmware, Siemens Scalance Xm-400, Siemens Scalance Xr524 Firmware, Siemens Scalance Xr524, Siemens Scalance Xr526 Firmware.