CVE-2025-2368 WebAssembly wabt Malformed File binary-reader-interp.cc OnExport heap-based overflow
A heap-based buffer overflow in wabt allows remote attackers to execute arbitrary code or cause denial of service via a malformed WebAssembly file.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-2368?
CVE-2025-2368 is a medium-severity memory corruption vulnerability in WebAssembly wabt, published on 17 Mar 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A vulnerability was found in WebAssembly wabt 1.0.36 and classified as critical. This issue affects the function wabt::interp::(anonymous namespace)::BinaryReaderInterp::OnExport of the file wabt/src/interp/binary-reader-interp.cc of the component Malformed File Handler. The manipulation leads to heap-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. It is recommended to apply a patch to fix this issue.
Which versions are affected by CVE-2025-2368?
1 open source package ship an affected version, including wabt-bin. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
wabt-bin PyPI | All versions to 1.0.36 | None |
Products include Webassembly Wabt.
How do I fix CVE-2025-2368?
No fix has been published for CVE-2025-2368 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-2368 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-2368 exists.
Other vulnerabilities in WebAssembly wabt
Sources
Also known as DEBIAN-CVE-2025-2368, GHSA-rqch-2mmw-28wc, PYSEC-2025-227, UBUNTU-CVE-2025-2368.