VULNERABILITY INTELLIGENCE

CVE-2021-27378

CVSS score9.8 CRITICAL
EPSS probability1.24%
CISA KEVNot currently listed
Published2021-02-18
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

An issue was discovered in the rand_core crate before 0.6.2 for Rust. Because read_u32_into and read_u64_into mishandle certain buffer-length checks, a random number generator may be seeded with too little data.

Weakness classification

  • CWE-131: Incorrect Calculation of Buffer Size

Primary references