{"id":"CVE-2026-110713","state":"PUBLISHED","title":"libsmb2 through 6.2 Heap Out-of-Bounds Read via File System Info Decoders","description":"libsmb2 through 6.2 contains a heap out-of-bounds read vulnerability in smb2_decode_file_fs_volume_info and smb2_decode_file_fs_attribute_info that allows malicious SMB servers to read past reply buffers. Attackers controlling a server or intercepting unsigned sessions can send crafted QUERY_INFO replies with missing or oversized name lengths to crash the client.","publishedAt":"2026-10-14T15:01:28.343Z","updatedAt":"2026-10-14T19:49:00.922Z","severity":{"score":7.1,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["sahlberg libsmb2"],"affected":[{"vendor":"sahlberg","product":"libsmb2","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"6.2","versionType":"custom"}],"collectionURL":"https://github.com/sahlberg/libsmb2","repo":"https://github.com/sahlberg/libsmb2"}],"references":["https://hackmd.io/@haind-pwn/libsmb2-query-info-reply-oob-read","https://github.com/sahlberg/libsmb2/blob/d67e213a5c4e7e4969fd81f0b95e4ca5831fbba1/lib/smb2-data-filesystem-info.c#L71","https://github.com/sahlberg/libsmb2/commit/dd0bbdee24bb56f7ec95431afc07ce0a666533f7","https://github.com/sahlberg/libsmb2","https://www.vulncheck.com/advisories/libsmb2-through-6.2-heap-out-of-bounds-read-via-file-system-info-decoders"],"weaknesses":["CWE-125"],"ingestedAt":"2026-10-29T20:10:33.477Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/110xxx/CVE-2026-110713.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-110713","state":"PUBLISHED","datePublished":"2026-10-14T15:01:28.343Z","dateUpdated":"2026-10-14T19:49:00.922Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-10-14T14:39:52.266Z"},"containers":{"cna":{"title":"libsmb2 through 6.2 Heap Out-of-Bounds Read via File System Info Decoders","descriptions":[{"lang":"en","value":"libsmb2 through 6.2 contains a heap out-of-bounds read vulnerability in smb2_decode_file_fs_volume_info and smb2_decode_file_fs_attribute_info that allows malicious SMB servers to read past reply buffers. 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