CVE-2025-2368: wabt Buffer Overflow — Exploit & Fix

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.

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CVSS v3.1 Score

6.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

Weakness Type (CWE)

CWE-119 Buffer Overflow

CWE-122 CWE-122

CWE-787 Out-of-bounds Write

Affected Products

Vendor	Product	Versions
webassembly	wabt	All

References

Advisories & Patches

https://github.com/WebAssembly/wabt/issues/2556 https://github.com/WebAssembly/wabt/issues/2556#issue-2899598349

Exploits

https://github.com/WebAssembly/wabt/issues/2556 https://github.com/WebAssembly/wabt/issues/2556#issue-2899598349

Other References

https://github.com/WebAssembly/wabt/issues/2537 https://github.com/WebAssembly/wabt/pull/2541 https://vuldb.com/?ctiid.299867 https://vuldb.com/?id.299867 https://vuldb.com/?submit.515327

Frequently Asked Questions

What is CVE-2025-2368? +

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. It has a CVSS v3.1 base score of 6.3 (MEDIUM).

How severe is CVE-2025-2368? +

CVE-2025-2368 has a CVSS v3.1 score of 6.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-2368? +

CVE-2025-2368 affects products from webassembly, specifically: wabt. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-2368? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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