Wasmtime is a runtime for WebAssembly. In versions from 38.0.0 to before 38.0.3, the implementation of component-model related host-to-wasm trampolines in Wasmtime contained a bug where it's possible to carefully craft a component, which when called in a specific way, would crash the host with a segfault or assert failure. Wasmtime 38.0.3 has been released and is patched to fix this issue. There are no workarounds.
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Affected Vendors & Products
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Fixes
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References
History
Fri, 24 Oct 2025 22:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Wasmtime is a runtime for WebAssembly. In versions from 38.0.0 to before 38.0.3, the implementation of component-model related host-to-wasm trampolines in Wasmtime contained a bug where it's possible to carefully craft a component, which when called in a specific way, would crash the host with a segfault or assert failure. Wasmtime 38.0.3 has been released and is patched to fix this issue. There are no workarounds. | |
| Title | Wasmtime vulnerable to segfault when using component resources | |
| Weaknesses | CWE-755 | |
| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2025-10-24T21:54:52.578Z
Reserved: 2025-10-20T19:41:22.740Z
Link: CVE-2025-62711
No data.
Status : Received
Published: 2025-10-24T22:15:49.850
Modified: 2025-10-24T22:15:49.850
Link: CVE-2025-62711
No data.
OpenCVE Enrichment
No data.