{"id":"CVE-2026-110713","revision":"f8aa2ba5c310453ebe451764141fab27","records":[{"revision":"f8aa2ba5c310453ebe451764141fab27","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-110713","aliases":[],"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.","state":0,"publishedAt":"2026-10-14T15:01:28.343+00:00","modifiedAt":"2026-10-14T19:49:00.922+00:00","affected":[{"ecosystem":"https://github.com/sahlberg/libsmb2","name":"libsmb2","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"sahlberg\",\n                    \"product\": \"libsmb2\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\",\n                            \"lessThanOrEqual\": \"6.2\"\n                        }\n                    ],\n                    \"collectionURL\": \"https://github.com/sahlberg/libsmb2\",\n                    \"repo\": \"https://github.com/sahlberg/libsmb2\"\n                }"}],"metrics":[{"system":"CVSS 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","score":7.1,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","score":6.5,"severity":"MEDIUM"}],"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"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-110713","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-110713","identifiers":["CVE-2026-110713"]},"retained":false,"historicalAffected":[]}],"coverage":[]}