AUGUST 4, 2026
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Case File

CVE-2019-25220

HIGH · CVSS 7.5 EPSS 0.78%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2024-11-18 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. It may be remotely exploitable. It may lead to a denial-of-service condition.

CVE
CVE-2019-25220
Severity
HIGH
CVSS
7.5
EPSS
0.78%

Original NVD Description

Bitcoin Core before 24.0.1 allows remote attackers to cause a denial of service (daemon crash) via a flood of low-difficulty header chains (aka a "Chain Width Expansion" attack) because a node does not first verify that a presented chain has enough work before committing to store it.

Related CVEs

Other vulnerabilities affecting the same vendor(s)