{"id":"CVE-2018-20304","aliases":["EUVD-2018-12864","GHSA-88pf-8p2q-mgcj"],"status":"published","title":"wbook_addworksheet in workbook.c in libexcel.a in libexcel 0.01 allows attackers to cause a...","description":"wbook_addworksheet in workbook.c in libexcel.a in libexcel 0.01 allows attackers to cause a denial of service (SEGV) via a long second argument. NOTE: this is not a Microsoft product.","severity":{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00859,"percentile":0.58738,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119"],"published":"2018-12-20T00:00:00Z","modified":"2026-10-20T10:48:03Z","products":[{"vendor":"libexcel_project","product":"libexcel"}],"references":[{"url":"https://github.com/devinsmith/libexcel/issues/9","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-20304"},{"url":"https://github.com/advisories/GHSA-88pf-8p2q-mgcj"}],"sources":{"cve":[{"id":"CVE-2018-20304","description":"wbook_addworksheet in workbook.c in libexcel.a in libexcel 0.01 allows attackers to cause a denial of service (SEGV) via a long second argument. NOTE: this is not a Microsoft product.","status":"published","published":"2018-12-20T00:00:00Z","modified":"2024-08-05T11:58:18.949Z","updated_at":"2026-11-02T14:35:00.237825Z"}],"euvd":[{"id":"EUVD-2018-12864","description":"wbook_addworksheet in workbook.c in libexcel.a in libexcel 0.01 allows attackers to cause a denial of service (SEGV) via a long second argument. NOTE: this is not a Microsoft product.","status":"published","published":"2018-12-20T00:00:00Z","modified":"2024-08-05T11:58:18Z","updated_at":"2026-11-03T02:39:31.423203Z"}],"ghsa":[{"id":"GHSA-88pf-8p2q-mgcj","title":"wbook_addworksheet in workbook.c in libexcel.a in libexcel 0.01 allows attackers to cause a...","description":"wbook_addworksheet in workbook.c in libexcel.a in libexcel 0.01 allows attackers to cause a denial of service (SEGV) via a long second argument. NOTE: this is not a Microsoft product.","status":"published","published":"2022-05-14T01:37:56Z","modified":"2023-02-02T05:04:12Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:51:48.979759Z"}],"nvd":[{"id":"CVE-2018-20304","description":"wbook_addworksheet in workbook.c in libexcel.a in libexcel 0.01 allows attackers to cause a denial of service (SEGV) via a long second argument. NOTE: this is not a Microsoft product.","status":"published","published":"2018-12-20T00:29:00.427Z","modified":"2026-06-17T01:52:35.377Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:04:50.99633Z"}],"osv":[{"id":"CVE-2018-20304","description":"wbook_addworksheet in workbook.c in libexcel.a in libexcel 0.01 allows attackers to cause a denial of service (SEGV) via a long second argument. NOTE: this is not a Microsoft product.","status":"published","published":"2018-12-20T00:29:00.427Z","modified":"2026-10-20T10:48:03.59584774Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:09.145458Z"}]}}