An issue was discovered in the raw-cpuid crate before 9.0.0 for Rust.
Priority LOW 25CWE-400Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-400.
Summary
An issue was discovered in the raw-cpuid crate before 9.0.0 for Rust. It allows __cpuid_count() calls even if the processor does not support the CPUID instruction, which is unsound and causes a deterministic crash.
Why it matters now
EPSS 0.00346 28th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed raw-cpuid (crates.io): 9.0.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | raw-cpuid (crates.io) | before 9.0.0 | 9.0.0 | Patch available | GHSA-jrf8-cmgg-gv2m |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- raw-cpuid (crates.io) Vendor— Affected before 9.0.0 Fixed in 9.0.0 Patch available GHSA-jrf8-cmgg-gv2m
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:raw-cpuid_project:raw-cpuid:*:*:*:*:*:rust:*:* | before 9.0.0 | Vulnerable | Raw-cpuid Project |
- cpe:2.3:a:raw-cpuid_project:raw-cpuid:*:*:*:*:*:rust:*:* Versions before 9.0.0 Vulnerable ·Raw-cpuid Project
Remediation
- Fix · GHSA-jrf8-cmgg-gv2m raw-cpuid (crates.io) Fixed in 9.0.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-26307
- 2026-10-03 Alias added: GHSA-jrf8-cmgg-gv2m
References
More Raw-cpuid Project Raw-cpuid vulnerabilities
- TI-2021-20774 An issue was discovered in the raw-cpuid crate before 9.1.1 for Rust. CVSS 3.1CRITICAL 9.8
- TI-2021-08134 An issue was discovered in the raw-cpuid crate before 9.0.0 for Rust. CVSS 3.1HIGH 7.5
Sources
- CVE-2021-26307 · CVE Program
- CVE-2021-26307 · NVD
- FIRST EPSS
- GHSA-jrf8-cmgg-gv2m · GitHub Advisory Database · CC BY 4.0
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