NULL Pointer Dereference Affecting WebAssembly/binaryen package, versions [,126)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published19 Dec 2025
- disclosed19 Dec 2025
- creditUnknown
Introduced: 19 Dec 2025
CVE-2025-14957 (opens in a new tab)How to fix?
Upgrade WebAssembly/binaryen to version 126 or higher.
Overview
Affected versions of this package are vulnerable to NULL Pointer Dereference via the makeLocalTee() function in the IRBuilder component. An attacker can cause a denial of service by manipulating the argument Index to trigger a null pointer dereference.