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Case File

CVE-2021-43667

HIGH · CVSS 7.5 EPSS 1.29% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-11-18 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-43667
Severity
HIGH
CVSS
7.5
EPSS
1.29%

Original NVD Description

A vulnerability has been detected in HyperLedger Fabric v1.4.0, v2.0.0, v2.1.0. This bug can be leveraged by constructing a message whose payload is nil and sending this message with the method 'forwardToLeader'. This bug has been admitted and fixed by the developers of Fabric. If leveraged, any leader node will crash.

Related CVEs

Other vulnerabilities affecting the same vendor(s)