CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2021-27378
Critical (9.8) in rand core project rand core. EPSS 1.2% chance of exploitation in the next 30 days. Fixed in rand_core 0.6.2.
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.
Severity
- EPSS
- 1.2% chance of exploitation in the next 30 days; higher than 69% of CVEs (scores of 2026-10-31)
- CWE
- CWE-131
- Published
- Modified
- Record from
- the NVD, synced
Affected
- rand_core_project:rand_core
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-w7j2-35mf-95p7 | crates.io | rand_core | >=0.6.0 <0.6.2 | 0.6.2 |
| RUSTSEC-2021-0023 | crates.io | rand_core | >=0.6.0 <0.6.2 | 0.6.2 |