CVE-2020-35923

MEDIUMNVD 5.55.5—

5.5

An issue was discovered in the ordered-float crate before 1.1.1 and 2.x before 2.0.1 for Rust. A NotNan value can contain a NaN.

CVSS v3: 5.5
EG Score: 5.5(medium)
EPSS: 32.9%
KEV: Not listed

Published

December 31, 2020

Last Modified

November 21, 2024

References (2)

cve@mitrehttps://rustsec.org/advisories/RUSTSEC-2020-0082.html
af854a3a-2127-422b-91ae-364da2661108https://rustsec.org/advisories/RUSTSEC-2020-0082.html

Affected Packages

(1 across 1 ecosystem)

crates.io(1)

Package	Vulnerable range	Fixed in	Dependents
ordered-float	—	2.0.1	—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-416Use After Free

Data Freshness Timeline

(refreshed 7× in last 7d / 7× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 22:46 UTCEG score recompute
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2020-35923?

CVE-2020-35923 is a medium vulnerability published on December 31, 2020. An issue was discovered in the ordered-float crate before 1.1.1 and 2.x before 2.0.1 for Rust. A NotNan value can contain a NaN.

When was CVE-2020-35923 disclosed?

CVE-2020-35923 was first published in the National Vulnerability Database on December 31, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2020-35923 actively exploited?

CVE-2020-35923 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 32.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-35923?

CVE-2020-35923 has a CVSS v3 base score of 5.5 (NVD).

How do I remediate CVE-2020-35923?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-35923, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2020-35923

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