PT-2025-43676 · Wasmtime · Wasmtime

CVE-2025-62711

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Published

2025-07-18

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Updated

2025-10-29

CVSS v3.1

3.1

Low

VectorAV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
Name of the Vulnerable Software and Affected Versions Wasmtime versions 38.0.0 through 38.0.2
Description Wasmtime is a runtime for WebAssembly. Versions from 38.0.0 through 38.0.2 contain a flaw in the implementation of component-model related host-to-wasm trampolines. Specifically, a carefully crafted component, when called in a specific way, can cause the host to crash with a segmentation fault or assertion failure.
Recommendations Update to version 38.0.3 or later.

Exploit

Fix

Improper Handling of Exceptional Conditions

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Weakness Enumeration

Related Identifiers

CVE-2025-62711
GHSA-4H67-722J-5PMC
RUSTSEC-2025-0112

Affected Products

Wasmtime