{"id":"CVE-2023-26489","aliases":["RUSTSEC-2023-0090","GHSA-ff4p-7xrq-q5r8"],"title":"Guest-controlled out-of-bounds read/write on x86\\_64","summary":"Guest-controlled out-of-bounds read/write on x86\\_64","severity":"critical","cvss":9.9,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","vendor":"wasmtime","product":"wasmtime","ecosystem":"rust","affected":["wasmtime >= 6.0.0, < 6.0.1"],"patched":["wasmtime 6.0.1"],"published":"2023-03-02","updated":"2026-10-12","sourceUpdated":"2026-10-12T18:00:06.452316813Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/RUSTSEC-2023-0090","references":[{"url":"https://crates.io/crates/wasmtime"},{"url":"https://rustsec.org/advisories/RUSTSEC-2023-0090.html"},{"url":"https://github.com/bytecodealliance/wasmtime/commit/63fb30e4b4415455d47b3da5a19d79c12f4f2d1f"}],"tags":["osv","rust"],"epss":0.01251,"epssPercentile":0.6926,"ingestedAt":"2026-10-13T11:45:30.162Z","slug":"CVE-2023-26489","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-ff4p-7xrq-q5r8.\nFor more information see the GitHub-hosted security advisory.\n\n## Affected packages\n\n- `wasmtime >= 6.0.0, < 6.0.1`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `wasmtime 6.0.1`","depth":"midnight","depthScore":55,"depthScoreParts":{"impact":54.5,"likelihood":0.3,"exploitation":0,"ransomware":0},"changes":[]}