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CVE-2021-45687

29
FAUCET Score

CVE-2021-45687 is a critical vulnerability affecting the raw-cpuid Rust crate prior to version 9.1.1, specifically when its non-default 'serialize' feature is enabled. This flaw allows for memory corruption or application panic due to insufficient validation during a Deserialize operation. With a CVSS score of 9.8 (Critical), it presents a severe risk as it can be exploited remotely over the network with low attack complexity, leading to high impacts on confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 9.1.1CPE matchmatch criteria
cpe:2.3:a:raw-cpuid_project:raw-cpuid:*:*:*:*:*:rust:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.12%
Probability of exploitation in next 30 days
EPSS Percentile
62.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0112 is in the 48th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

rustpatch availablevia ghsa
Product: raw-cpuidFixed in: 9.1.1

Vendor Advisories (1)

rustGHSA-w428-f65r-h4q2critical

Deserialization of Untrusted Data in rust-cpuid

Jan 6, 2022

References

raw.githubusercontent.com / rustsec/advisory-db/main/crates/raw-cpuid/RUSTSEC-2021-0089.md
Third Party Advisory
rustsec.org / advisories/RUSTSEC-2021-0089.html
Third Party Advisory