ruby-ffi version 1.9.23 and earlier has a DLL loading issue which can be hijacked on…
Priority LOW 37CWE-426Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-426.
Summary
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.
Why it matters now
EPSS 0.0133 71st percentileScored 2026-11-07
Fix Fixed ffi (RubyGems): 1.9.24
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | ffi (RubyGems) | before 1.9.24 | 1.9.24 | Patch available | GHSA-2gw2-8q9w-cw8p |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- ffi (RubyGems) Vendor— Affected before 1.9.24 Fixed in 1.9.24 Patch available GHSA-2gw2-8q9w-cw8p
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ruby-ffi_project:ruby-ffi:*:*:*:*:*:*:*:* | up to 1.9.23 | Vulnerable | Ruby-ffi Project |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
- cpe:2.3:a:ruby-ffi_project:ruby-ffi:*:*:*:*:*:*:*:* Versions up to 1.9.23 Vulnerable ·Ruby-ffi Project
- cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
Remediation
- Fix · GHSA-2gw2-8q9w-cw8p ffi (RubyGems) Fixed in 1.9.24 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2018-1000201
- 2026-10-03 Alias added: GHSA-2gw2-8q9w-cw8p
References
Patch 2
Sources
- CVE-2018-1000201 · CVE Program
- CVE-2018-1000201 · NVD
- FIRST EPSS
- GHSA-2gw2-8q9w-cw8p · GitHub Advisory Database · CC BY 4.0
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