Vulnerability Details CVE-2021-42766
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 55.7%
CVSS Severity
CVSS v3 Score 9.1
CVSS v2 Score 6.4
Products affected by CVE-2021-42766
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cpe:2.3:a:proof-of-stake_ethereum_project:proof-of-stake_ethereum:*