AUGUST 4, 2026
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Case File

CVE-2021-42764

CRITICAL · CVSS 9.1 EPSS 0.93%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-10-20 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.1. It may lead to a denial-of-service condition.

CVE
CVE-2021-42764
Severity
CRITICAL
CVSS
9.1
EPSS
0.93%

Original NVD Description

The Proof-of-Stake (PoS) Ethereum consensus protocol through 2021-10-19 allows an adversary to cause a denial of service (delayed consensus decisions), and also increase the profits of individual validators, via short-range reorganizations of the underlying consensus chain.

Related CVEs

Other vulnerabilities affecting the same vendor(s)