CVE-2021-45687

mediumpriority · track · 39EPSS 0.012 · 67 %ileEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
1.16% (67th) EPSS
CVSS 6.8 · medium
Is it mine?
4 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-28

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.

01

cvss

Technical severity, 0–10. One row per scoring source.

9.8
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6.8–9.8

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV
v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
02

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimaryCWE-502US
03

affected products (4)

Products and version ranges known to be affected.

04

advisories (3)

Vendor and ecosystem advisories describing this.

  • GHSA-jf5h-cf95-w759Optional `Deserialize` implementations lacking validation2022-06-17ghsa · osvUS

    When activating the non-default feature `serialize`, most structs implement `serde::Deserialize` without sufficient validation. This allows breaking invariants in safe code, leading to: * Undefined behavior in `as_string()` methods (which use `std::str::from_utf8_unchecked()` internally). * Panics due to failed assertions. See https://github.com/gz/rust-cpuid/issues/43.

  • GHSA-w428-f65r-h4q2Deserialization of Untrusted Data in rust-cpuid2022-01-06ghsa · osvUS

    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.

  • RUSTSEC-2021-0089Optional `Deserialize` implementations lacking validation2021-01-20vendor · osvUS

    When activating the non-default feature `serialize`, most structs implement `serde::Deserialize` without sufficient validation. This allows breaking invariants in safe code, leading to: * Undefined behavior in `as_string()` methods (which use `std::str::from_utf8_unchecked()` internally). * Panics due to failed assertions. See https://github.com/gz/rust-cpuid/issues/43.

05

also known as (6)

Other names and identifiers for this entity.

06

sources

Which sources assert this record, and when.

cnnvdenisa_euvdosvnvdNVDCVE.orgMITRE
published 2021-12-27modified 2026-06-17
08

references (7)

External citations — patches, advisories, analysis.

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