CVE-2025-15412

Medium

Description

A security vulnerability has been detected in WebAssembly wabt up to 1.0.39. This issue affects the function wabt::Decompiler::VarName of the file /src/repro/wabt/bin/wasm-decompile of the component wasm-decompile. Such manipulation leads to out-of-bounds read. Local access is required to approach this attack. The exploit has been disclosed publicly and may be used. Unfortunately, the project has no active maintainer at the moment. In a reply to the issue report somebody recommended to the researcher to provide a PR himself.

SeverityMedium
CVSS5.3
Exploit probability—
ProductWebassembly Wabt
PublishedJan 1, 2026
First seenJan 1, 2026

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
webassembly wabtv ≤ 1.0.39—

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CVE-2025-15412 · Webassembly Wabt · Dark Radar