GitHub Advisoryadvisory · npm
GHSA-5pr6-crvp-2j9f Open Chinese Convert has Out-of-bounds Write
LOW
Official page ↗
- Aliases
- CVE-2025-15536
- Ecosystem
- npm
- Packages
- opencc
- Severity
- Low
- CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
- Weaknesses
- CWE-119, CWE-787
- Reviewed
- 2026-02-06
Affected packages
• npm opencc: < 1.2.0 → fixed in 1.2.0
Description
A weakness has been identified in BYVoid OpenCC up to 1.1.9. This vulnerability affects the function opencc::MaxMatchSegmentation of the file src/MaxMatchSegmentation.cpp. This manipulation causes heap-based buffer overflow. The attack is restricted to local execution. The exploit has been made available to the public and could be used for attacks. Patch name: 345c9a50ab07018f1b4439776bad78a0d40778ec. To fix this issue, it is recommended to deploy a patch.
Related
Alias · CVE (1)
- CVE-2025-15536 A weakness has been identified in BYVoid OpenCC up to 1.1.9. vulnerability
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-15536 advisory
- https://github.com/BYVoid/OpenCC/issues/997 web
- https://github.com/BYVoid/OpenCC/pull/1005 web
- https://github.com/BYVoid/OpenCC/commit/345c9a50ab07018f1b4439776bad78a0d40778ec web
- https://github.com/BYVoid/OpenCC package
- https://github.com/oneafter/1222/blob/main/repro web
- https://vuldb.com/?ctiid.341708 web
- https://vuldb.com/?id.341708 web
- https://vuldb.com/?submit.733347 web