CVE-2025-15412CWE-119CWE-125

CVE-2025-15412

Medium · published January 2, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
10.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00208 · 10.4th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-125 · Out-of-bounds Read
Published
2026-01-02T02:15Z
Affected products (1)
ProductVersionsFixed in
webassembly/wabt≤ 1.0.39—
References (6)
EPSS history
Timeline
  • 01 JAN 20:32Z
    WebAssembly wabt wasm-decompile VarName out-of-bounds
    cvelistv5