CVE-2025-14956 | WebAssembly Binaryen up to 125 src/wasm/wasm-binary.cpp readExport heap-based overflow (Issue 8089)

December 19, 2025 Yanac

A vulnerability identified as problematic has been detected in WebAssembly Binaryen up to 125. Affected by this issue is the function WasmBinaryReader::readExport of the file src/wasm/wasm-binary.cpp. This manipulation causes heap-based buffer overflow.

This vulnerability is handled as CVE-2025-14956. It is possible to launch the attack on the local host. Additionally, an exploit exists.

It is recommended to apply a patch to fix this issue.VulDB Recent EntriesRead More