CVE 4.8 MEDIUM

WebAssembly Binaryen IRBuilder wasm-ir-builder.cpp makeLocalTee null pointer dereference_CVE-2025-14957

4.8 / 10
MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

Description

A vulnerability was identified in WebAssembly Binaryen up to 125. This affects the function IRBuilder::makeLocalGet/IRBuilder::makeLocalSet/IRBuilder::makeLocalTee of the file src/wasm/wasm-ir-builder.cpp of the component IRBuilder. Such manipulation of the argument Index leads to null pointer dereference. Local access is required to approach this attack. The exploit is publicly available and might be used. The name of the patch is 6fb2b917a79578ab44cf3b900a6da4c27251e0d4. Applying a patch is advised to resolve this issue.

Basic Information

ID CVE-2025-14957
Source VulDB
Published Dec 19, 2025 at 17:02

Affected Product

Vendor WebAssembly
Product Binaryen
Version 125
Affected Versions WebAssembly Binaryen 125

CWE Classification

References

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