VULNERABILITY INTELLIGENCE

CVE-2021-45699

CVSS score7.5 HIGH
EPSS probability1.52%
CISA KEVNot currently listed
Published2021-12-27
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

An issue was discovered in the ckb crate before 0.40.0 for Rust. Remote attackers may be able to conduct a 51% attack against the Nervos CKB blockchain by triggering an inability to allocate memory for the misbehavior HashMap.

Weakness classification

  • nvd@nist.gov: CWE-770

Primary references