VDB
CVE-2025-14957
CVE-2025-14957
PUBLISHED
CVSS 1.899999976158142 LOW
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.
EPSS 0.21% · 11.6th percentile
Risk Scores
CVSS 4.0
1.899999976158142
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score
0.21%
11.6th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| WebAssembly | Binaryen | 125 |
| webassembly | binaryen | 0 |
Timeline
- Dec 19, 2025 CVE ID Reserved
- Dec 19, 2025 CVE Published
- Dec 20, 2025 EPSS Score
- Dec 24, 2025 EPSS Score
- Dec 29, 2025 EPSS Score
- Jan 2, 2026 EPSS Score
- Jan 7, 2026 EPSS Score
- Jan 11, 2026 EPSS Score
- Jan 15, 2026 EPSS Score
- Jan 20, 2026 EPSS Score
- Jan 24, 2026 EPSS Score
- Jan 28, 2026 EPSS Score
References
- https://github.com/WebAssembly/binaryen/issues/8090 discussion
- https://github.com/WebAssembly/binaryen/pull/8099 fix
- https://github.com/WebAssembly/binaryen/commit/6fb2b917a79578ab44cf3b900a6da4c27251e0d4 fix
- https://vuldb.com/?submit.717317 advisory
- https://vuldb.com/?submit.717319 advisory
- VDB-337593 | WebAssembly Binaryen IRBuilder wasm-ir-builder.cpp makeLocalTee null pointer dereference vdb
- VDB-337593 | CTI Indicators (IOB, IOC, IOA) url
- https://github.com/oneafter/1204/blob/main/af1 exploit
- https://github.com/WebAssembly/binaryen/ url
- https://nvd.nist.gov/vuln/detail/CVE-2025-14957 advisory
- https://github.com/WebAssembly/binaryen url