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Vulnerability · Published Jan 1, 2026 · Assigned by VulDB

CVE-2025-15411WebAssembly wabt wasm-decompile InsertNode memory corruption

Medium 5.3

In plain English

A medium-severity memory corruption in wabt from WebAssembly. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.2%top 89.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A weakness has been identified in WebAssembly wabt up to 1.0.39. This vulnerability affects the function wabt::AST::InsertNode of the file /src/repro/wabt/bin/wasm-decompile of the component wasm-decompile. This manipulation causes memory corruption. It is possible to launch the attack on the local host. The exploit has been made available to the public and could be used for attacks. 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12wabtno fix listedDEBIAN-CVE-2025-15411
Debian:13wabtno fix listedDEBIAN-CVE-2025-15411
Debian:14wabtno fix listedDEBIAN-CVE-2025-15411
Ubuntu:22.04:LTSwabtno fix listedUBUNTU-CVE-2025-15411
Ubuntu:24.04:LTSwabtno fix listedUBUNTU-CVE-2025-15411
Ubuntu:25.10wabtno fix listedUBUNTU-CVE-2025-15411
Ubuntu:26.04:LTSwabtno fix listedUBUNTU-CVE-2025-15411
Ubuntu:26.10wabtno fix listedUBUNTU-CVE-2025-15411

Affected products (as reported)

VendorProductVersions
WebAssembly wabt 1.0.01.0.11.0.21.0.31.0.41.0.51.0.61.0.7

Weakness: CWE-119 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

References