Open Chinese Convert (OpenCC) 1.0.5 allows attackers to cause a denial of service…
Priority LOW 27CWE-125Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-125 and the CVSS impact.
Summary
Open Chinese Convert (OpenCC) 1.0.5 allows attackers to cause a denial of service (segmentation fault) because BinaryDict::NewFromFile in BinaryDict.cpp may have out-of-bounds keyOffset and valueOffset values via a crafted .ocd file.
Why it matters now
EPSS 0.01093 65th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed opencc (npm): 1.1.2
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 |
| — | opencc (npm) | before 1.1.2 | 1.1.2 | Patch available | GHSA-9qh2-6fxg-9m4g |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- opencc (npm) Vendor— Affected before 1.1.2 Fixed in 1.1.2 Patch available GHSA-9qh2-6fxg-9m4g
Remediation
- Fix · GHSA-9qh2-6fxg-9m4g opencc (npm) Fixed in 1.1.2 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
Not affected: 2 products
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2018-16982
- 2026-10-03 Alias added: GHSA-9qh2-6fxg-9m4g
References
Other 6
- https://github.com/BYVoid/OpenCC/pull/309
- https://github.com/BYVoid/OpenCC/pull/560
- https://github.com/BYVoid/OpenCC/pull/560/commits/e1b8c7949738100e4747dd4109ef1f16e1bd99c4
- https://github.com/BYVoid/OpenCC/commit/4a4f9e58e505fca93605f22363c133df66a91a5e
- https://github.com/BYVoid/OpenCC
- https://github.com/pypa/advisory-database/tree/main/vulns/opencc-py/PYSEC-2018-153.yaml
More BYVoid Open Chinese Convert vulnerabilities
- TI-2025-14175 BYVoid OpenCC MaxMatchSegmentation.cpp MaxMatchSegmentation heap-based overflow CVSS 4.0MEDIUM 4.8
Sources
- CVE-2018-16982 · CVE Program
- CVE-2018-16982 · NVD
- FIRST EPSS
- GHSA-9qh2-6fxg-9m4g · GitHub Advisory Database · CC BY 4.0
- CVE-2018-16982 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences