Vulnerability library
Security checkFebruary 06, 2026

Open Chinese Convert has Out-of-bounds Write

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Low severitynpmopencc

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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.

Recommendation

Update the opencc package to the latest compatible version. Followings are version details:

  • Affected version(s): <= 1.1.9
  • Patched version(s): 1.2.0

References

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Related Issues

See something that needs correcting? Let us knowUpdated February 06, 2026