{"schema":"threatline.record/2","record":{"id":"CVE-2026-115505","aliases":[],"summary":"libsmb2 before 6.3 Integer Overflow in DCE/RPC NDR Decoder via NetrShareEnum","details":"libsmb2 before 6.3 contains integer overflow vulnerabilities in the DCE/RPC NDR decoder in lib/dcerpc.c that allow heap out-of-bounds reads and writes. A malicious SMB server or machine-in-the-middle on unsigned connections can send crafted NetrShareEnum replies with wrapping actual_count or max_count values when clients call smb2_share_enum_async(), corrupting heap memory.","categories":["Unclassified"],"product":"libsmb2","vendor":"sahlberg","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-115505","source_modified_at":"2026-10-22T19:14:05.297Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"libsmb2","vendor":"sahlberg","versions":[{"version":"0","status":"affected","versionType":"custom","lessThan":"6.3"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-115505","source_modified_at":"2026-10-22T19:14:05.297Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"libsmb2","ecosystem":null},"version":"6.3","basis":"first unaffected version stated in the CVE record"}],"cvss":7.2,"severity":"High","kev":{"listed":false},"epss":{"probability":0.0021,"percentile":0.10664,"score_date":"2026-10-23"},"published_at":"2026-10-22T19:14:05.297Z","modified_at":"2026-10-22T19:14:05.297Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-115505","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-22T19:14:05.297Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-115505","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://hackmd.io/@haindpwn/libsmb2-dcerpc-ndr-count-overflow-oob","tags":["technical-description","exploit"]},{"source":"CVE List","url":"https://github.com/sahlberg/libsmb2/issues/496","tags":["issue-tracking"]},{"source":"CVE List","url":"https://github.com/sahlberg/libsmb2/commit/a79f6914cb5ed3f74293d15cdea901261ce179ff","tags":["patch"]},{"source":"CVE List","url":"https://github.com/sahlberg/libsmb2/releases/tag/libsmb2-6.3","tags":["release-notes"]},{"source":"CVE List","url":"https://github.com/sahlberg/libsmb2","tags":["product"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/libsmb2-before-6.3-integer-overflow-in-dce-rpc-ndr-decoder-via-netrshareenum","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-22T19:14:05.297Z","content_hash":"5acf6aa14f8ae718003bbc7ef352ae4c56e1200adab5b1ef5f872b1758b5c0ec"}}