CVE-2025-62711
LOWWasmtime 38.0.0-38.0.2 - Denial of Service via Crafted Component-Model Trampoline
Title source: llmDescription
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.
References (3)
Core 3
Core References
Patch, Third Party Advisory x_refsource_confirm
https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-4h67-722j-5pmc
Patch x_refsource_misc
https://github.com/bytecodealliance/wasmtime/pull/11592
Scores
CVSS v3
3.1
EPSS
0.0038
EPSS Percentile
29.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-755
Status
published
Products (2)
bytecodealliance/wasmtime
38.0.0 - 38.0.3
crates.io/wasmtime
38.0.0 - 38.0.3crates.io
Published
Oct 24, 2025
Tracked Since
Feb 18, 2026