CVE-2021-3401

CRITICAL

Bitcoin Core <0.19.0 - RCE

Title source: llm

Description

Bitcoin Core before 0.19.0 might allow remote attackers to execute arbitrary code when another application unsafely passes the -platformpluginpath argument to the bitcoin-qt program, as demonstrated by an x-scheme-handler/bitcoin handler for a .desktop file or a web browser. NOTE: the discoverer states "I believe that this vulnerability cannot actually be exploited."

References (2)

[Third Party Advisory] https://achow101.com/2021/02/0.18-uri-vuln

[Patch, Third Party Advisory] https://github.com/bitcoin/bitcoin/pull/16578

Scores

CVSS v3 9.8

EPSS 0.0300

EPSS Percentile 86.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Classification

CWE

CWE-88

Status published

Affected Products (1)

bitcoin/bitcoin < 0.19.0

Timeline

Published Feb 04, 2021

Tracked Since Feb 18, 2026