VULNERABILITY INTELLIGENCE

CVE-2021-43667

CVSS score7.5 HIGH

EPSS probability1.34%

CISA KEVNot currently listed

Published2021-11-18

Last modified2026-06-17

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

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.

Weakness classification

nvd@nist.gov: CWE-476

Primary references

cve@mitre.org — Patch, Third Party Advisory
cve@mitre.org — Exploit, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Vendor Advisory