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CVE-2021-26306

22
FAUCET Score

CVE-2021-26306 is a high-severity vulnerability affecting the raw-cpuid Rust crate prior to version 9.0.0, stemming from unsound transmute calls within its as_string() methods. This flaw allows for a complete denial of service (availability impact) and can be exploited remotely with low attack complexity, requiring no user interaction or privileges. Currently, there is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 9.0.0CPE matchmatch criteria
cpe:2.3:a:raw-cpuid_project:raw-cpuid:*:*:*:*:*:rust:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.26%
Probability of exploitation in next 30 days
EPSS Percentile
66.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0126 is in the 46th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 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: 9.0.0

Vendor Advisories (1)

rustGHSA-hvqc-pc78-x9whhigh

Soundness issue in raw-cpuid

Aug 25, 2021

References

rustsec.org / advisories/RUSTSEC-2021-0013.html
Vendor Advisory