CVE-2020-28393
HIGHSCALANCE XM-400/XR-500 <6.4 - DoS
Title source: llmDescription
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).
Scores
CVSS v3
7.5
EPSS
0.0053
EPSS Percentile
66.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Classification
CWE
CWE-682
Status
published
Affected Products (11)
siemens/scalance_xm-400_firmware
< 6.4
siemens/scalance_xr524_firmware
< 6.4
siemens/scalance_xr526_firmware
< 6.4
siemens/scalance_xr528_firmware
< 6.4
siemens/scalance_xr552_firmware
< 6.4
siemens/scalance_xm416-4c_firmware
< 6.4
siemens/scalance_xm408-8c_firmware
< 6.4
siemens/scalance_xm408-4c_firmware
< 6.4
siemens/scalance_xm416-4c_l3_firmware
< 6.4
siemens/scalance_xm408-8c_l3_firmware
< 6.4
siemens/scalance_xm408-4c_l3_firmware
< 6.4
Timeline
Published
May 12, 2021
Tracked Since
Feb 18, 2026