{"id":"CVE-2021-3751","aliases":["EUVD-2021-27026","GHSA-7g44-2g66-w5fr"],"status":"published","title":"Out-of-bounds Write in bfabiszewski/libmobi","description":"libmobi is vulnerable to Out-of-bounds Write","severity":{"version":"3.0","score":9.6,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01237,"percentile":0.69477,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2021-09-15T06:40:10Z","modified":"2026-10-20T14:27:09Z","products":[{"vendor":"bfabiszewski","product":"bfabiszewski/libmobi"},{"vendor":"libmobi_project","product":"libmobi"}],"references":[{"url":"https://huntr.dev/bounties/fcb4383c-bc27-4b89-bfce-6b041f0cb769","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Issue Tracking","Patch","Third Party Advisory","fix"]},{"url":"https://github.com/bfabiszewski/libmobi/commit/ab5bf0e37e540eac682a14e628853b918626e72b","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3751"},{"url":"https://github.com/advisories/GHSA-7g44-2g66-w5fr"}],"sources":{"cve":[{"id":"CVE-2021-3751","title":"Out-of-bounds Write in bfabiszewski/libmobi","description":"libmobi is vulnerable to Out-of-bounds Write","status":"published","published":"2021-09-15T06:40:10Z","modified":"2024-08-03T17:09:08.31Z","cvss":[{"version":"3.0","score":9.6,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:33:03.671751Z"}],"euvd":[{"id":"EUVD-2021-27026","description":"libmobi is vulnerable to Out-of-bounds Write","status":"published","published":"2021-09-15T06:40:10Z","modified":"2024-08-03T17:09:08Z","cvss":[{"version":"3.0","score":9.6,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-03T03:25:11.953192Z"}],"ghsa":[{"id":"GHSA-7g44-2g66-w5fr","title":"libmobi is vulnerable to Out-of-bounds Write","description":"libmobi is vulnerable to Out-of-bounds Write","status":"published","published":"2022-05-24T19:14:48Z","modified":"2023-01-30T05:02:15Z","cwes":["CWE-787"],"updated_at":"2026-11-02T14:46:35.666418Z"}],"nvd":[{"id":"CVE-2021-3751","description":"libmobi is vulnerable to Out-of-bounds Write","status":"published","published":"2021-09-15T07:15:06.98Z","modified":"2026-06-17T04:05:41.863Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"3.0","score":9.6,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:06:58.502206Z"}],"osv":[{"id":"CVE-2021-3751","description":"libmobi is vulnerable to Out-of-bounds Write","status":"published","published":"2021-09-15T07:15:06.98Z","modified":"2026-10-20T14:27:09.304003561Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:20.434873Z"}]}}