{"id":"CVE-2015-6856","aliases":["EUVD-2015-6792","GHSA-6fjg-xx96-px9q"],"status":"published","title":"Dell Pre-Boot Authentication Driver (PBADRV.sys) 1.0.1.5 allows local users to write to arbitrary...","description":"Dell Pre-Boot Authentication Driver (PBADRV.sys) 1.0.1.5 allows local users to write to arbitrary physical memory locations and gain privileges via a 0x0022201c IOCTL call.","severity":{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00521,"percentile":0.4453,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-264"],"published":"2016-01-08T19:00:00Z","modified":"2026-06-17T00:31:32Z","products":[{"vendor":"dell","product":"pre-boot_authentication_driver"}],"references":[{"url":"https://www.korelogic.com/Resources/Advisories/KL-001-2015-008.txt","tags":["x_refsource_MISC","x_transferred","Exploit"]},{"url":"http://packetstormsecurity.com/files/134987/Dell-Authentication-Driver-Uncontrolled-Write.html","tags":["x_refsource_MISC","x_transferred","Exploit"]},{"url":"http://www.securityfocus.com/archive/1/537161/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://www.securityfocus.com/bid/79643","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://seclists.org/fulldisclosure/2015/Dec/81","tags":["mailing-list","x_refsource_FULLDISC","x_transferred","Exploit"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-6856"},{"url":"https://github.com/advisories/GHSA-6fjg-xx96-px9q"}],"sources":{"cve":[{"id":"CVE-2015-6856","description":"Dell Pre-Boot Authentication Driver (PBADRV.sys) 1.0.1.5 allows local users to write to arbitrary physical memory locations and gain privileges via a 0x0022201c IOCTL call.","status":"published","published":"2016-01-08T19:00:00Z","modified":"2024-08-06T07:36:33.401Z","updated_at":"2026-11-02T14:35:42.680858Z"}],"euvd":[{"id":"EUVD-2015-6792","description":"Dell Pre-Boot Authentication Driver (PBADRV.sys) 1.0.1.5 allows local users to write to arbitrary physical memory locations and gain privileges via a 0x0022201c IOCTL call.","status":"published","published":"2016-01-08T19:00:00Z","modified":"2024-08-06T07:36:33Z","updated_at":"2026-11-03T02:21:54.34629Z"}],"ghsa":[{"id":"GHSA-6fjg-xx96-px9q","title":"Dell Pre-Boot Authentication Driver (PBADRV.sys) 1.0.1.5 allows local users to write to arbitrary...","description":"Dell Pre-Boot Authentication Driver (PBADRV.sys) 1.0.1.5 allows local users to write to arbitrary physical memory locations and gain privileges via a 0x0022201c IOCTL call.","status":"published","published":"2022-05-14T02:47:59Z","modified":"2023-02-02T05:06:57Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T14:52:24.271651Z"}],"nvd":[{"id":"CVE-2015-6856","description":"Dell Pre-Boot Authentication Driver (PBADRV.sys) 1.0.1.5 allows local users to write to arbitrary physical memory locations and gain privileges via a 0x0022201c IOCTL call.","status":"published","published":"2016-01-08T19:59:02.707Z","modified":"2026-06-17T00:31:32.273Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-264"],"updated_at":"2026-11-02T14:03:15.746629Z"}]}}