{"id":"CVE-2026-110712","summary":"libsmb2 through 6.2 Heap Out-of-Bounds Read via smb2_decode_file_all_info","details":"libsmb2 through 6.2 contains a heap out-of-bounds read vulnerability in smb2_decode_file_all_info that allows malicious SMB servers to crash clients by sending an unchecked FileNameLength. Attackers controlling the server or performing man-in-the-middle on unsigned sessions can return crafted FileAllInformation replies to smb2_stat or smb2_fstat calls, crashing the client.","modified":"2026-10-15T02:47:29.539480903Z","published":"2026-10-14T15:01:27.547Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-125"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110712.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110712.json"},{"type":"PACKAGE","url":"https://github.com/sahlberg/libsmb2"},{"type":"ARTICLE","url":"https://github.com/sahlberg/libsmb2/blob/d67e213a5c4e7e4969fd81f0b95e4ca5831fbba1/lib/smb2-data-file-info.c#L202"},{"type":"FIX","url":"https://github.com/sahlberg/libsmb2/commit/57bee9fb941a39307145b82e4dd1718862f30a74"},{"type":"EVIDENCE","url":"https://hackmd.io/@haind-pwn/libsmb2-query-info-reply-oob-read"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-110712"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/libsmb2-through-6.2-heap-out-of-bounds-read-via-smb2-decode-file-all-info"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/sahlberg/libsmb2","events":[{"introduced":"0"},{"last_affected":"d67e213a5c4e7e4969fd81f0b95e4ca5831fbba1"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"6.2"}],"source":"AFFECTED_FIELD"}}],"versions":["libsmb2-6.2","libsmb2-6.1","v6.0.0","libsmb2-6.0","v5.0.0","v4.0.0","v3.0.0","v2.0.0","v1.0.0","libsmb2-1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-110712.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"}]}