CVE-2025-2368: WebAssembly wabt Malformed File binary-reader-interp.cc OnExport heap-based overflow

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-03-17 · updated 2026-06-17
Weakness: CWE-119

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.

Affected products

WebAssembly wabt: 1.0.36

References

https://github.com/WebAssembly/wabt/issues/2537
https://github.com/WebAssembly/wabt/issues/2556
https://github.com/WebAssembly/wabt/issues/2556#issue-2899598349
https://github.com/WebAssembly/wabt/pull/2541
https://vuldb.com/?ctiid.299867
https://vuldb.com/?id.299867
https://vuldb.com/?submit.515327

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