How severe is CVE-2018-1000201?

CVE-2018-1000201 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-1000201 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1000201?

CVE-2018-1000201 affects Ruby-ffi Project Ruby-ffi. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-1000201?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-1000201 published?

CVE-2018-1000201 was published on 2018-06-22 and last updated on 2026-06-17.

CVE-2018-1000201

CVE-2018-1000201 is a high-severity vulnerability in Ruby-ffi Project Ruby-ffi with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-426.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-426
Affected product: Ruby-ffi Project Ruby-ffi
Published: 2018-06-22
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2018-1000201?: 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.
How severe is CVE-2018-1000201?: CVE-2018-1000201 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-1000201 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1000201?: CVE-2018-1000201 affects Ruby-ffi Project Ruby-ffi. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-1000201?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-1000201 published?: CVE-2018-1000201 was published on 2018-06-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ruby-ffi_project:ruby-ffi:*:*:*:*:*:*:*:*

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