Vulnerability Database

322,935

Total vulnerabilities in the database

CVE-2020-18382

Heap-buffer-overflow in /src/wasm/wasm-binary.cpp in wasm::WasmBinaryBuilder::visitBlock(wasm::Block*) in Binaryen 1.38.26. A crafted wasm input can cause a segmentation fault, leading to denial-of-service, as demonstrated by wasm-opt.

  • Published: Aug 22, 2023
  • Updated: Nov 16, 2025
  • CVE: CVE-2020-18382
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 6.5
  • AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CWEs:

Software From Fixed in
webassembly / binaryen 1.38.26 1.38.26.x