{"id":"CVE-2021-3751","details":"libmobi is vulnerable to Out-of-bounds Write","modified":"2026-07-08T22:13:43.584754Z","published":"2021-09-15T07:15:06.980Z","references":[{"type":"FIX","url":"https://github.com/bfabiszewski/libmobi/commit/ab5bf0e37e540eac682a14e628853b918626e72b"},{"type":"FIX","url":"https://huntr.dev/bounties/fcb4383c-bc27-4b89-bfce-6b041f0cb769"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/bfabiszewski/libmobi","events":[{"introduced":"0"},{"fixed":"c814c4aba4e090fa32805ff8ff459df6c2c61b5c"},{"fixed":"ab5bf0e37e540eac682a14e628853b918626e72b"}],"database_specific":{"cpe":"cpe:2.3:a:libmobi_project:libmobi:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"0.7"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["v0.6","v0.5","v0.4","v0.3","v0.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3751.json","vanir_signatures_modified":"2026-07-08T22:13:43Z","vanir_signatures":[{"target":{"file":"src/buffer.c"},"deprecated":false,"digest":{"line_hashes":["120694252244805791903290417316973324711","120333361470414790212041862905057810084","242482985265602302095058247358560159784","120221589808660705953910058901898346551","253859431149654223752734219259169364840"],"threshold":0.9},"id":"CVE-2021-3751-8edb6631","signature_type":"Line","signature_version":"v1","source":"https://github.com/bfabiszewski/libmobi/commit/ab5bf0e37e540eac682a14e628853b918626e72b"},{"source":"https://github.com/bfabiszewski/libmobi/commit/ab5bf0e37e540eac682a14e628853b918626e72b","target":{"function":"mobi_buffer_move","file":"src/buffer.c"},"deprecated":false,"digest":{"function_hash":"280190109604768326930381359724459835257","length":576},"id":"CVE-2021-3751-a9163d0e","signature_type":"Function","signature_version":"v1"}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}