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CVE-2021-26307

MEDIUMCVSS 5.5/10EPSS 0.34%

Last modified

CVE-2021-26307 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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.. EPSS estimates a 0.34% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
5.5/10

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

EPSS Probability
0.34%

26.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
Raw-Cpuid ProjectRaw-Cpuid< 9.0.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-26307?
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.
How severe is CVE-2021-26307?
CVE-2021-26307 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.34% probability of exploitation in the next 30 days.
How do I fix CVE-2021-26307?
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-2021-26307?

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

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Source: NVD / NIST