{"id":"CVE-2016-2826","aliases":["EUVD-2016-3899","GHSA-f7c8-7wc6-wrv3"],"status":"published","title":"The maintenance service in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2 on...","description":"The maintenance service in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2 on Windows does not prevent MAR extracted-file modification during updater execution, which might allow local users to gain privileges via a Trojan horse file.","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":0.00341,"percentile":0.27815,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-264"],"published":"2016-06-13T10:00:00Z","modified":"2026-06-17T00:44:32Z","products":[{"vendor":"mozilla","product":"firefox"}],"references":[{"url":"http://www.securitytracker.com/id/1036057","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://www.mozilla.org/security/announce/2016/mfsa2016-55.html","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1237219","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.securityfocus.com/bid/91075","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-2826"},{"url":"https://github.com/advisories/GHSA-f7c8-7wc6-wrv3"}],"sources":{"cve":[{"id":"CVE-2016-2826","description":"The maintenance service in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2 on Windows does not prevent MAR extracted-file modification during updater execution, which might allow local users to gain privileges via a Trojan horse file.","status":"published","published":"2016-06-13T10:00:00Z","modified":"2024-08-05T23:32:21.232Z","updated_at":"2026-11-02T14:33:33.424551Z"}],"euvd":[{"id":"EUVD-2016-3899","description":"The maintenance service in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2 on Windows does not prevent MAR extracted-file modification during updater execution, which might allow local users to gain privileges via a Trojan horse file.","status":"published","published":"2016-06-13T10:00:00Z","modified":"2024-08-05T23:32:21Z","updated_at":"2026-11-03T02:22:52.199729Z"}],"ghsa":[{"id":"GHSA-f7c8-7wc6-wrv3","title":"The maintenance service in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2 on...","description":"The maintenance service in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2 on Windows does not prevent MAR extracted-file modification during updater execution, which might allow local users to gain privileges via a Trojan horse file.","status":"published","published":"2022-05-17T03:42:54Z","modified":"2023-01-27T05:08:07Z","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":"2026-11-02T14:43:15.040364Z"}],"nvd":[{"id":"CVE-2016-2826","description":"The maintenance service in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2 on Windows does not prevent MAR extracted-file modification during updater execution, which might allow local users to gain privileges via a Trojan horse file.","status":"published","published":"2016-06-13T10:59:09.15Z","modified":"2026-06-17T00:44:32.223Z","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":"2026-11-02T14:03:26.642445Z"}]}}