{"id":"CVE-2024-34249","aliases":["GHSA-mq9p-qw76-q6h7","PYSEC-2024-308"],"url":"https://o3.security/vulnerability/CVE-2024-34249","summary":"pywasm3 contains a heap buffer overflow which leads to segmentation fault","details":"wasm3 v0.5.0 was discovered to contain a heap buffer overflow which leads to segmentation fault via the function \"DeallocateSlot\" in wasm3/source/m3_compile.c.","published":"2024-05-06T00:00:00Z","modified":"2026-07-15T01:49:06.175371195Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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-2024-34249.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-34249"},{"type":"REPORT","url":"https://github.com/wasm3/wasm3/issues/485"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:49:06.175371195Z"}}