{"id":"CVE-2024-34252","aliases":["GHSA-hh39-vjv8-j337","PYSEC-2024-309"],"url":"https://o3.security/vulnerability/CVE-2024-34252","summary":"pywasm3 contains a global buffer overflow which leads to segmentation fault","details":"wasm3 v0.5.0 was discovered to contain a global buffer overflow which leads to segmentation fault via the function \"PreserveRegisterIfOccupied\" in wasm3/source/m3_compile.c.","published":"2024-05-06T00:00:00Z","modified":"2026-08-12T03:51:31.682644570Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"pywasm3","fixedVersion":null}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/34xxx/CVE-2024-34252.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-34252"},{"type":"REPORT","url":"https://github.com/wasm3/wasm3/issues/483"},{"type":"WEB","url":"https://github.com/pypa/advisory-database/tree/main/vulns/pywasm3/PYSEC-2024-309.yaml"},{"type":"PACKAGE","url":"https://github.com/wasm3/pywasm3"},{"type":"WEB","url":"https://github.com/wasm3/pywasm3/blob/main/wasm3/m3_compile.c#L420"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:31.682644570Z"}}