A vulnerability identified as critical has been detected 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.

This vulnerability is tracked as CVE-2025-15536. The attack is restricted to local execution. Moreover, an exploit is present.

To fix this issue, it is recommended to deploy a patch.