Out-of-bounds Read Affecting wasm-micro-runtime package, versions [0,]
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CONAN-WASMMICRORUNTIME-14123045
- published26 Nov 2025
- disclosed25 Nov 2025
- creditZhenwei Jin
Introduced: 25 Nov 2025
CVE-2025-64713 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Read in the preserve_local_for_block function, when handling a sequence where a GET_GLOBAL(I32) opcode is followed by an if opcode in fast interpreter mode. An attacker can cause out-of-bounds access to the frame_offset_bottom array by crafting specific WebAssembly bytecode that manipulates stack cell numbers and triggers improper array expansion.