Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 62.5%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 5.0
References
Products affected by CVE-2021-33720
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cpe:2.3:o:siemens:siprotec_5_with_cpu_variant_cp050:*
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cpe:2.3:o:siemens:siprotec_5_with_cpu_variant_cp100:7.82
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cpe:2.3:o:siemens:siprotec_5_with_cpu_variant_cp300:7.82