{"id":"CVE-2025-64345","aliases":["RUSTSEC-2025-0118","GHSA-hc7m-r6v8-hg9q"],"title":"Unsound API access to a WebAssembly shared linear memory","summary":"Unsound API access to a WebAssembly shared linear memory","severity":"low","cvss":1.8,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:N","vendor":"wasmtime","product":"wasmtime","ecosystem":"rust","affected":["wasmtime >= 38.0.0, < 38.0.4"],"patched":["wasmtime 38.0.4"],"published":"2025-11-11","updated":"2026-10-12","sourceUpdated":"2026-10-12T18:00:07.413203425Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/RUSTSEC-2025-0118","references":[{"url":"https://crates.io/crates/wasmtime"},{"url":"https://rustsec.org/advisories/RUSTSEC-2025-0118.html"},{"url":"https://github.com/bytecodealliance/wasmtime/commit/9ebb6934f00d58b92fb68ed0e0b16c0ae828ca10"}],"tags":["osv","rust"],"epss":0.00108,"epssPercentile":0.01132,"ingestedAt":"2026-10-13T11:45:30.181Z","slug":"CVE-2025-64345","body":"## Overview\n\nThis is an entry in the RustSec database for the Wasmtime security advisory\nlocated at\nhttps://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-hc7m-r6v8-hg9q\nFor more information see the GitHub-hosted security advisory.\n\n## Affected packages\n\n- `wasmtime >= 38.0.0, < 38.0.4`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `wasmtime 38.0.4`","depth":"sunlit","depthScore":10,"depthScoreParts":{"impact":9.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}