CVE-2018-1000201

HIGHNVD 7.8

7.8

ruby-ffi version 1.9.23 and earlier has a DLL loading issue which can be hijacked on Windows OS, when a Symbol is used as DLL name instead of a String This vulnerability appears to have been fixed in v1.9.24 and later.

CVSS v3: 7.8
EG Score: —
EPSS: 46.8%
KEV: Not listed

Published

June 22, 2018

Last Modified

November 21, 2024

References (4)

cve@mitrehttps://github.com/ffi/ffi/commit/09e0c6076466b4383da7fa4e13f714311109945a
cve@mitrehttps://github.com/ffi/ffi/commit/e0fe486df0e117ed67b0282b6ada04b7214ca05c
af854a3a-2127-422b-91ae-364da2661108https://github.com/ffi/ffi/commit/09e0c6076466b4383da7fa4e13f714311109945a
af854a3a-2127-422b-91ae-364da2661108https://github.com/ffi/ffi/commit/e0fe486df0e117ed67b0282b6ada04b7214ca05c

Affected Packages

(1 across 1 ecosystem)

RubyGems(1)

Package	Vulnerable range	Fixed in	Dependents
ffi	0.1.0 ... 1.9.9 (89 versions)	1.9.24	—

Weakness Classification(1)

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

CWE-426Untrusted Search Path

Data Freshness Timeline

(refreshed 6× in last 7d / 6× 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 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-25 16:46 UTCOSV refresh

Frequently asked(5)

What is CVE-2018-1000201?

CVE-2018-1000201 is a high vulnerability published on June 22, 2018. ruby-ffi version 1.9.23 and earlier has a DLL loading issue which can be hijacked on Windows OS, when a Symbol is used as DLL name instead of a String This vulnerability appears to have been fixed in v1.9.24 and later.

When was CVE-2018-1000201 disclosed?

CVE-2018-1000201 was first published in the National Vulnerability Database on June 22, 2018, 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-2018-1000201 actively exploited?

CVE-2018-1000201 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 46.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-1000201?

CVE-2018-1000201 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2018-1000201?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-1000201, 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-2018-1000201

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