CVE-2025-14957A vulnerability was identified in WebAssembly Binaryen up to 125.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-404, CWE-476
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
webassembly binaryen webassembly:binaryen | through 125 | NVD |
References
- https://github.com/WebAssembly/binaryen/
- https://github.com/WebAssembly/binaryen/commit/6fb2b917a79578ab44cf3b900a6da4c27251e0d4patch
- https://github.com/WebAssembly/binaryen/issues/8090exploit, issue-tracking, third-party-advisory
- https://github.com/WebAssembly/binaryen/pull/8099issue-tracking
- https://github.com/oneafter/1204/blob/main/af1not-applicable
- https://vuldb.com/?ctiid.337593permissions-required, vdb-entry
- https://vuldb.com/?id.337593third-party-advisory, vdb-entry
- https://vuldb.com/?submit.717317third-party-advisory, vdb-entry
- https://vuldb.com/?submit.717319third-party-advisory, vdb-entry
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.