CVE-2025-14957

Description

A vulnerability was identified in WebAssembly Binaryen up to 125. This affects the function IRBuilder::makeLocalGet/IRBuilder::makeLocalSet/IRBuilder::makeLocalTee of the file src/wasm/wasm-ir-builder.cpp of the component IRBuilder. Such manipulation of the argument Index leads to null pointer dereference. Local access is required to approach this attack. The exploit is publicly available and might be used. The name of the patch is 6fb2b917a79578ab44cf3b900a6da4c27251e0d4. Applying a patch is advised to resolve this issue.

CVSS v3.1 Score

3.3

LOW

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

Weakness Type (CWE)

CWE-404 CWE-404

CWE-476 CWE-476

Affected Products

Vendor	Product	Versions
webassembly	binaryen	< 125

References

Advisories & Patches

https://github.com/WebAssembly/binaryen/commit/6fb2b917a79578ab44cf3b900a6da4c27251e0d4

Exploits

https://github.com/WebAssembly/binaryen/issues/8090

Other References

https://github.com/WebAssembly/binaryen/ https://github.com/WebAssembly/binaryen/pull/8099 https://github.com/oneafter/1204/blob/main/af1 https://vuldb.com/?ctiid.337593 https://vuldb.com/?id.337593 https://vuldb.com/?submit.717317 https://vuldb.com/?submit.717319

Frequently Asked Questions

What is CVE-2025-14957? +

A vulnerability was identified in WebAssembly Binaryen up to 125. This affects the function IRBuilder::makeLocalGet/IRBuilder::makeLocalSet/IRBuilder::makeLocalTee of the file src/wasm/wasm-ir-builder.cpp of the component IRBuilder. Such manipulation of the argument Index leads to null pointer dereference. Local access is required to approach this attack. The exploit is publicly available and might be used. The name of the patch is 6fb2b917a79578ab44cf3b900a6da4c27251e0d4. Applying a patch is advised to resolve this issue. It has a CVSS v3.1 base score of 3.3 (LOW).

How severe is CVE-2025-14957? +

CVE-2025-14957 has a CVSS v3.1 score of 3.3 out of 10, rated LOW. This is a low-severity vulnerability with limited impact.

What products are affected by CVE-2025-14957? +

CVE-2025-14957 affects products from webassembly, specifically: binaryen. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-14957? +

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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