{"id":"CVE-2016-6239","aliases":["EUVD-2016-7169","GHSA-r5cc-h5wp-rfqg"],"status":"published","title":"The mmap extension __MAP_NOFAULT in OpenBSD 5.8 and 5.9 allows attackers to cause a denial of...","description":"The mmap extension __MAP_NOFAULT in OpenBSD 5.8 and 5.9 allows attackers to cause a denial of service (kernel panic and crash) via a large size value.","severity":{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00485,"percentile":0.42005,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2017-03-07T16:00:00Z","modified":"2026-06-17T00:50:40Z","products":[{"vendor":"openbsd","product":"openbsd"}],"references":[{"url":"http://www.securitytracker.com/id/1036318","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://www.openbsd.org/errata59.html","tags":["x_refsource_CONFIRM","x_transferred","Release Notes"]},{"url":"http://www.openwall.com/lists/oss-security/2016/07/14/5","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2016/07/17/7","tags":["mailing-list","x_refsource_MLIST","x_transferred","Exploit","Mailing List","Third Party Advisory"]},{"url":"http://www.openbsd.org/errata58.html","tags":["x_refsource_CONFIRM","x_transferred","Release Notes"]},{"url":"http://www.securityfocus.com/bid/91805","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-6239"},{"url":"https://github.com/advisories/GHSA-r5cc-h5wp-rfqg"}],"sources":{"cve":[{"id":"CVE-2016-6239","description":"The mmap extension __MAP_NOFAULT in OpenBSD 5.8 and 5.9 allows attackers to cause a denial of service (kernel panic and crash) via a large size value.","status":"published","published":"2017-03-07T16:00:00Z","modified":"2024-08-06T01:22:21.004Z","updated_at":"2026-11-02T14:33:34.443637Z"}],"euvd":[{"id":"EUVD-2016-7169","description":"The mmap extension __MAP_NOFAULT in OpenBSD 5.8 and 5.9 allows attackers to cause a denial of service (kernel panic and crash) via a large size value.","status":"published","published":"2017-03-07T16:00:00Z","modified":"2024-08-06T01:22:21Z","updated_at":"2026-11-03T02:22:39.91691Z"}],"ghsa":[{"id":"GHSA-r5cc-h5wp-rfqg","title":"The mmap extension __MAP_NOFAULT in OpenBSD 5.8 and 5.9 allows attackers to cause a denial of...","description":"The mmap extension __MAP_NOFAULT in OpenBSD 5.8 and 5.9 allows attackers to cause a denial of service (kernel panic and crash) via a large size value.","status":"published","published":"2022-05-17T01:19:06Z","modified":"2023-02-03T05:03:50Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:53:26.410699Z"}],"nvd":[{"id":"CVE-2016-6239","description":"The mmap extension __MAP_NOFAULT in OpenBSD 5.8 and 5.9 allows attackers to cause a denial of service (kernel panic and crash) via a large size value.","status":"published","published":"2017-03-07T16:59:00.367Z","modified":"2026-06-17T00:50:40.507Z","cvss":[{"version":"3.0","score":5.5,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:03:37.238712Z"}]}}