Bug 2406269 (CVE-2025-62711) - CVE-2025-62711 wasmtime: Wasmtime vulnerable to segfault when using component resources
Summary: CVE-2025-62711 wasmtime: Wasmtime vulnerable to segfault when using component...
Keywords:
Status: NEW
Alias: CVE-2025-62711
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-10-24 22:01 UTC by OSIDB Bzimport
Modified: 2025-10-28 20:46 UTC (History)
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Description OSIDB Bzimport 2025-10-24 22:01:48 UTC 
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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