cvedb.io
CVE-2021-33720
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2021-09-14T11:15:24.540 · Last modified 2026-06-17T03:55:06.260

Summary

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.

Affected products

siemens — siprotec_5_with_cpu_variant_cp050

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.