CVE-2025-15536A weakness has been identified in BYVoid OpenCC up to 1.1.9.
Updated under an hour ago ()
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It affects byvoid open_chinese_convert. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-119, CWE-122, CWE-787
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
byvoid open_chinese_convert byvoid:open_chinese_convert | through 1.1.9 | NVD |
References
- https://github.com/BYVoid/OpenCC/
- https://github.com/BYVoid/OpenCC/commit/345c9a50ab07018f1b4439776bad78a0d40778ecpatch
- https://github.com/BYVoid/OpenCC/issues/997exploit, issue-tracking, patch
- https://github.com/BYVoid/OpenCC/pull/1005issue-tracking, patch
- https://github.com/oneafter/1222/blob/main/reproproduct
- https://vuldb.com/?ctiid.341708permissions-required, vdb-entry
- https://vuldb.com/?id.341708third-party-advisory, vdb-entry
- https://vuldb.com/?submit.733347exploit, third-party-advisory, vdb-entry
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.