CVE-2025-15411: A weakness has been identified in WebAssembly wabt up to 1.0.39. This vulnerability affects the function…
CVE-2025-15411 · Severity: medium · CVSS 5.3 · Published 2026-01-01
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.
No. Junglewise Threat Intelligence has no report of CVE-2025-15411 being exploited in the wild.
How severe is CVE-2025-15411?
Medium severity, with a CVSS score of 5.3, published 1 January 2026.
Which products and versions are affected?
WebAssembly Wabt. The advisory does not name versions.
Is there a fix for CVE-2025-15411?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-15411?
Check whether you run WebAssembly Wabt. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.