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{"bugzilla": {"description": "wasmtime: Wasmtime vulnerable to segfault when using component resources", "id": "2406269", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2406269"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.7", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-755", "details": ["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.", "A Denial of Service vulnerability has been identified in the Wasmtime WebAssembly runtime, affecting versions 38.0.0 through 38.0.2. An attacker can exploit this flaw by providing a carefully crafted WebAssembly component and invoking it in a specific manner. This malicious action causes the host process to crash, leading to a complete disruption of service for applications utilizing the vulnerable runtime."], "name": "CVE-2025-62711", "package_state": [{"cpe": "cpe:/a:redhat:connectivity_link:1", "fix_state": "Fix deferred", "package_name": "rhcl-1/wasm-shim-rhel9", "product_name": "Red Hat Connectivity Link 1"}], "public_date": "2025-10-24T21:54:52Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-62711\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-62711\nhttps://github.com/bytecodealliance/wasmtime/commit/192f2fcdadfec9d0cf6b58548a85a7307450cbf5\nhttps://github.com/bytecodealliance/wasmtime/pull/11592\nhttps://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-4h67-722j-5pmc"], "threat_severity": "Low"}