{"id":"CVE-2026-110713","summary":"libsmb2 through 6.2 Heap Out-of-Bounds Read via File System Info Decoders","details":"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.","modified":"2026-10-17T02:48:10.848577007Z","published":"2026-10-14T15:01:28.343Z","database_specific":{"cwe_ids":["CWE-125"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110713.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110713.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-110713"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/libsmb2-through-6.2-heap-out-of-bounds-read-via-file-system-info-decoders"},{"type":"FIX","url":"https://github.com/sahlberg/libsmb2/commit/dd0bbdee24bb56f7ec95431afc07ce0a666533f7"},{"type":"PACKAGE","url":"https://github.com/sahlberg/libsmb2"},{"type":"ARTICLE","url":"https://github.com/sahlberg/libsmb2/blob/d67e213a5c4e7e4969fd81f0b95e4ca5831fbba1/lib/smb2-data-filesystem-info.c#L71"},{"type":"EVIDENCE","url":"https://hackmd.io/@haind-pwn/libsmb2-query-info-reply-oob-read"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/sahlberg/libsmb2","events":[{"introduced":"916d039e798cd6a6a60dff97e5441853b653d5f9"},{"fixed":"d67e213a5c4e7e4969fd81f0b95e4ca5831fbba1"},{"fixed":"dd0bbdee24bb56f7ec95431afc07ce0a666533f7"}],"database_specific":{"extracted_events":[{"introduced":"libsmb2"},{"fixed":"6.2"}],"source":["DESCRIPTION","REFERENCES"]}}],"versions":["libsmb2-6.1","v6.0.0","libsmb2-6.0","v5.0.0","v4.0.0","v3.0.0","v2.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-110713.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}