cvedb.io
CVE-2026-66720
MEDIUM · CVSS 6.5
EPSS exploitation probability: 0%
Published 2026-07-30T23:16:53.830 · Last modified 2026-07-30T23:16:53.830

Summary

The GOOSE subscriber component improperly validates the UTC timestamp field in unauthenticated IEC 61850 GOOSE (EtherType 0x88B8) Layer-2 multicast messages. A specially crafted GOOSE frame containing an undersized timestamp field can trigger a heap out-of-bounds read during message processing, causing the process to crash and resulting in a denial-of-service condition.

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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.