Description
A vulnerability has been identified in SIPROTEC 5 relays with CPU variants CP050 (All versions < V8.80), SIPROTEC 5 relays with CPU variants CP100 (All versions < V8.80), SIPROTEC 5 relays with CPU variants CP300 (All versions < V8.80). Specially crafted packets sent to port 4443/tcp could cause a Denial-of-Service condition.
References (1)
Core 1
Core References
Patch, Vendor Advisory x_refsource_misc
https://cert-portal.siemens.com/productcert/pdf/ssa-847986.pdf
Scores
CVSS v3
7.5
EPSS
0.0044
EPSS Percentile
63.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-120
Status
published
Products (3)
siemens/siprotec_5_with_cpu_variant_cp050
< 8.80
siemens/siprotec_5_with_cpu_variant_cp100
< 8.80
siemens/siprotec_5_with_cpu_variant_cp300
< 8.80
Published
Sep 14, 2021
Tracked Since
Feb 18, 2026