CVE-2025-62711 | THREATINT

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.

PUBLISHED Reserved 2025-10-20 | Published 2025-10-24 | Updated 2025-10-27 | Assigner GitHub_M

LOW: 2.1CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L

Problem types

CWE-755: Improper Handling of Exceptional Conditions

Product status

>= 38.0.0, < 38.0.3

affected

References

github.com/...smtime/security/advisories/GHSA-4h67-722j-5pmc

github.com/bytecodealliance/wasmtime/pull/11592

github.com/...ommit/192f2fcdadfec9d0cf6b58548a85a7307450cbf5

cve.org (CVE-2025-62711)

nvd.nist.gov (CVE-2025-62711)

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