VulnerabilityModified
CVE-2020-28393
An unauthenticated remote attacker could create a permanent denial-of-service condition by sending specially crafted OSPF packets.
HIGH 7.5EPSS 1.63%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.63%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.63% probability · 75th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-682
- Affected
- siemens/scalance xm-400 firmware · siemens/scalance xr524 firmware · siemens/scalance xr526 firmware · siemens/scalance xr528 firmware · siemens/scalance xr552 firmware · siemens/scalance xm416-4c firmware · siemens/scalance xm408-8c firmware · siemens/scalance xm408-4c firmware · siemens/scalance xm416-4c l3 firmware · siemens/scalance xm408-8c l3 firmware · siemens/scalance xm408-4c l3 firmware
- Source
- productcert@siemens.com
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-116379.pdfVendor Advisory
- https://us-cert.cisa.gov/ics/advisories/icsa-21-131-10Third Party Advisory, US 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 Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.