binaryen: A vulnerability was determined in WebAssembly Binaryen up to 125
CVE-2025-14956 is fixed in 3 products on 1 platform, first by DEBIAN-CVE-2025-14956, released December 19, 2025. It is not reported as exploited. Patch Radar priority: High.
A vulnerability was determined 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. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. Patch name: 4f52bff8c4075b5630422f902dd92a0af2c9f398. It is recommended to apply a patch to fix this issue.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| binaryen · Debian 14 | 130-2 | DEBIAN-CVE-2025-14956 | Dec 19, 2025 |
| binaryen · Fedora 43 | 126-1.fc43 | FEDORA-2026-FB3E461878 | Apr 20, 2026 |
| binaryen-debuginfo · Fedora 43 | 126-1.fc43 | FEDORA-2026-FB3E461878 | Apr 20, 2026 |
| binaryen-debugsource · Fedora 43 | 126-1.fc43 | FEDORA-2026-FB3E461878 | Apr 20, 2026 |
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