cvedb.io
CVE-2021-42766
CRITICAL · CVSS 9.1
EPSS exploitation probability: 0%
Published 2021-10-20T20:15:07.517 · Last modified 2026-06-17T04:10:06.530

Summary

The Proof-of-Stake (PoS) Ethereum consensus protocol through 2021-10-19 allows an adversary to cause a denial of service (long-range consensus chain reorganizations), even when this adversary has little stake and cannot influence network message propagation. This can cause a protocol stall, or an increase in the profits of individual validators.

Affected products

proof-of-stake_ethereum_project — proof-of-stake_ethereum

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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.