What is CVE-2021-45705?

CVE-2021-45705 is a critical-severity vulnerability in Nanorand Project. CVSS score: 9.8/10. Published 2021-12-27.

How severe is CVE-2021-45705?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Nanorand Project

CVE-2021-45705

An issue was discovered in the nanorand crate before 0.6.1 for Rust. There can be multiple mutable references to the same object because the TlsWyRand Deref implementation dereferences a raw pointer.

Published 2021-12-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.012 (66.8th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 66.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Nanorand Project

References

rustsec.org/advisories/RUSTSEC-2021-0114.html (Third Party Advisory)
raw.githubusercontent.com/rustsec/advisory-db/main/crates/nanorand/RUSTSEC-2021… (Third Party Advisory)

Frequently asked questions

What is CVE-2021-45705?: CVE-2021-45705 is a critical-severity vulnerability in Nanorand Project. CVSS score: 9.8/10. Published 2021-12-27.
How severe is CVE-2021-45705?: Critical severity. CVSS v3 base score is 9.8 out of 10.