CVE-2021-33720

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.

Score

CVSS 3.1 7.5 High

Status

Modified - productcert@siemens.com

Published

2021-09-14

Last modified

2024-08-03

Weaknesses

CWE-120

Affected products

• Siprotec 5 Relays With Cpu Variants Cp050 (Siemens)
• Siprotec 5 Relays With Cpu Variants Cp100 (Siemens)
• Siprotec 5 Relays With Cpu Variants Cp300 (Siemens)
• Siprotec 5 With Cpu Variant Cp050 (Siemens)
• Siprotec 5 With Cpu Variant Cp100 (Siemens)
• Siprotec 5 With Cpu Variant Cp300 (Siemens)

References

• https://cert-portal.siemens.com/productcert/pdf/ssa-847986.pdf