{"id":"CVE-2017-7766","aliases":["EUVD-2017-16741","GHSA-w9c7-gp5q-hh44","MGASA-2018-0018"],"status":"published","title":"An attack using manipulation of \"updater.ini\" contents, used by the Mozilla Windows Updater, and...","description":"An attack using manipulation of \"updater.ini\" contents, used by the Mozilla Windows Updater, and privilege escalation through the Mozilla Maintenance Service to allow for arbitrary file execution and deletion by the Maintenance Service, which has privileged access. Note: This attack requires local system access and only affects Windows. Other operating systems are not affected. This vulnerability affects Firefox ESR \u003c 52.2 and Firefox \u003c 54.","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":0.00374,"percentile":0.31612,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2018-01-02T11:48:29Z","modified":"2026-06-17T01:25:09Z","affected":[{"source":"osv","ecosystem":"Mageia:5","package":"iceape","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.49.1-3.mga5"}]}],"bundled":112},{"source":"osv","ecosystem":"Mageia:6","package":"iceape","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.49.1-3.mga6"}]}],"bundled":112}],"products":[{"vendor":"mozilla","product":"firefox"},{"vendor":"mozilla","product":"firefox esr"}],"references":[{"url":"http://www.securityfocus.com/bid/99057","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2017-15/","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://www.securitytracker.com/id/1038689","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1342742","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2017-16/","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-7766"},{"url":"https://www.mozilla.org/security/advisories/mfsa2017-15"},{"url":"https://www.mozilla.org/security/advisories/mfsa2017-16"},{"url":"https://github.com/advisories/GHSA-w9c7-gp5q-hh44"},{"url":"https://advisories.mageia.org/MGASA-2018-0018.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=22283","tags":["report"]},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2017-05/","tags":["advisory"]},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2017-12/","tags":["advisory"]},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2017-16/","tags":["advisory"]},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2017-19/","tags":["advisory"]},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2017-22/","tags":["advisory"]},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2017-25/","tags":["advisory"]},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2017-28/","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2017-7766","description":"An attack using manipulation of \"updater.ini\" contents, used by the Mozilla Windows Updater, and privilege escalation through the Mozilla Maintenance Service to allow for arbitrary file execution and deletion by the Maintenance Service, which has privileged access. Note: This attack requires local system access and only affects Windows. Other operating systems are not affected. This vulnerability affects Firefox ESR \u003c 52.2 and Firefox \u003c 54.","status":"published","published":"2018-06-11T21:00:00Z","modified":"2024-08-05T16:12:28.506Z","updated_at":"2026-11-02T14:33:20.843976Z"}],"euvd":[{"id":"EUVD-2017-16741","description":"An attack using manipulation of \"updater.ini\" contents, used by the Mozilla Windows Updater, and privilege escalation through the Mozilla Maintenance Service to allow for arbitrary file execution and deletion by the Maintenance Service, which has privileged access. Note: This attack requires local system access and only affects Windows. Other operating systems are not affected. This vulnerability affects Firefox ESR \u003c 52.2 and Firefox \u003c 54.","status":"published","published":"2018-06-11T21:00:00Z","modified":"2024-08-05T16:12:28Z","updated_at":"2026-11-03T02:39:07.559484Z"}],"ghsa":[{"id":"GHSA-w9c7-gp5q-hh44","title":"An attack using manipulation of \"updater.ini\" contents, used by the Mozilla Windows Updater, and...","description":"An attack using manipulation of \"updater.ini\" contents, used by the Mozilla Windows Updater, and privilege escalation through the Mozilla Maintenance Service to allow for arbitrary file execution and deletion by the Maintenance Service, which has privileged access. Note: This attack requires local system access and only affects Windows. Other operating systems are not affected. This vulnerability affects Firefox ESR \u003c 52.2 and Firefox \u003c 54.","status":"published","published":"2022-05-13T01:47:10Z","modified":"2025-11-25T18:33:17Z","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":"2026-11-02T15:04:56.973775Z"}],"nvd":[{"id":"CVE-2017-7766","description":"An attack using manipulation of \"updater.ini\" contents, used by the Mozilla Windows Updater, and privilege escalation through the Mozilla Maintenance Service to allow for arbitrary file execution and deletion by the Maintenance Service, which has privileged access. Note: This attack requires local system access and only affects Windows. Other operating systems are not affected. This vulnerability affects Firefox ESR \u003c 52.2 and Firefox \u003c 54.","status":"published","published":"2018-06-11T21:29:08.53Z","modified":"2026-06-17T01:25:09.3Z","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":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:04:18.679411Z"}],"osv":[{"id":"MGASA-2018-0018","title":"Updated iceape packages fix security vulnerabilities","description":"Updated iceape packages include security fixes from upstream Seamonkey\nand Firefox:\n\nMultiple flaws were found in the way Iceape 2.48 processes various types\nof web content, where loading a web page containing malicious content\ncould cause Iceape to crash, execute arbitrary code, or disclose\nsensitive information. (CVE-2016-10196,CVE-2017-5398,CVE-2017-5399,\nCVE-2017-5400,CVE-2017-5401,CVE-2017-5402,CVE-2017-5403,CVE-2017-5404,\nCVE-2017-5405,CVE-2017-5406,CVE-2017-5407,CVE-2017-5409,CVE-2017-5410,\nCVE-2017-5411,CVE-2017-5408,CVE-2017-5412,CVE-2017-5413,CVE-2017-5414,\nCVE-2017-5415,CVE-2017-5416,CVE-2017-5417,CVE-2017-5425,CVE-2017-5426,\nCVE-2017-5427,CVE-2017-5418,CVE-2017-5419,CVE-2017-5420,CVE-2017-5421,\nCVE-2017-5422,CVE-2017-5429,CVE-2017-5430,CVE-2017-5432,CVE-2017-5433,\nCVE-2017-5434,CVE-2017-5435,CVE-2017-5436,CVE-2017-5438,CVE-2017-5439,\nCVE-2017-5440,CVE-2017-5441,CVE-2017-5442,CVE-2017-5443,CVE-2017-5444,\nCVE-2017-5445,CVE-2017-5446,CVE-2017-5447,CVE-2017-5448,CVE-2017-5449,\nCVE-2017-5451,CVE-2017-5454,CVE-2017-5455,CVE-2017-5456,CVE-2017-5459,\nCVE-2017-5460,CVE-2017-5461,CVE-2017-5462,CVE-2017-5464,CVE-2017-5465,\nCVE-2017-5466,CVE-2017-5467,CVE-2017-5469,CVE-2017-5470,CVE-2017-5472,\nCVE-2017-7749,CVE-2017-7750,CVE-2017-7751,CVE-2017-7752,CVE-2017-7753,\nCVE-2017-7754,CVE-2017-7755,CVE-2017-7756,CVE-2017-7757,CVE-2017-7758,\nCVE-2017-7760,CVE-2017-7761,CVE-2017-7763,CVE-2017-7764,CVE-2017-7765,\nCVE-2017-7766,CVE-2017-7767,CVE-2017-7768,CVE-2017-7778,CVE-2017-7779,\nCVE-2017-7782,CVE-2017-7784,CVE-2017-7785,CVE-2017-7786,CVE-2017-7787,\nCVE-2017-7791,CVE-2017-7792,CVE-2017-7793,CVE-2017-7798,CVE-2017-7800,\nCVE-2017-7801,CVE-2017-7802,CVE-2017-7803,CVE-2017-7804,CVE-2017-7805,\nCVE-2017-7807,CVE-2017-7809,CVE-2017-7810,CVE-2017-7814,CVE-2017-7818,\nCVE-2017-7819,CVE-2017-7823,CVE-2017-7824,CVE-2017-7825,CVE-2017-7826,\nCVE-2017-7828,CVE-2017-7830,CVE-2017-7843,CVE-2017-7845)\n","status":"published","published":"2018-01-02T11:48:29Z","modified":"2026-04-16T06:24:36.415771916Z","updated_at":"2026-11-02T15:49:40.442238Z"}]}}