VULNERABILITY INTELLIGENCE

CVE-2020-28393

CVSS score7.5 HIGH

EPSS probability1.63%

CISA KEVNot currently listed

Published2021-05-12

Last modified2026-06-17

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

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).

Weakness classification

productcert@siemens.com: CWE-682

Primary references

productcert@siemens.com — Vendor Advisory
productcert@siemens.com — Third Party Advisory, US Government Resource
af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, US Government Resource