CVE-2021-45687

Name: CVE-2021-45687
Creator: NVD / NIST
Published: 2021-12-27T00:15:09.123+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.12%

Last modified Jun 17, 2026

CVE-2021-45687 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was discovered in the raw-cpuid crate before 9.1.1 for Rust. If the serialize feature is used (which is not the the default), a Deserialize operation may lack sufficient validation, leading to memory corruption or a panic.. EPSS estimates a 1.12% chance of exploitation in the next 30 days.

Description

An issue was discovered in the raw-cpuid crate before 9.1.1 for Rust. If the serialize feature is used (which is not the the default), a Deserialize operation may lack sufficient validation, leading to memory corruption or a panic.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.12%

62.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Raw-Cpuid Project	Raw-Cpuid	< 9.1.1

References

https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/raw-cpuid/RUSTSEC-2021-0089.mdThird Party Advisory
https://rustsec.org/advisories/RUSTSEC-2021-0089.htmlThird Party Advisory
https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/raw-cpuid/RUSTSEC-2021-0089.mdThird Party Advisory
https://rustsec.org/advisories/RUSTSEC-2021-0089.htmlThird Party Advisory

Timeline

Published: Dec 27, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-45687?

How severe is CVE-2021-45687?

CVE-2021-45687 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.12% probability of exploitation in the next 30 days.

How do I fix CVE-2021-45687?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-45687?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST