{"id":"CVE-2017-5928","aliases":["EUVD-2017-15003","GHSA-3m9f-698w-3mf8"],"status":"published","title":"The W3C High Resolution Time API, as implemented in various web browsers, does not consider that...","description":"The W3C High Resolution Time API, as implemented in various web browsers, does not consider that memory-reference times can be measured by a performance.now \"Time to Tick\" approach even with the https://bugzilla.mozilla.org/show_bug.cgi?id=1167489#c9 protection mechanism in place, which makes it easier for remote attackers to conduct AnC attacks via crafted JavaScript code.","severity":{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01746,"percentile":0.77956,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2017-02-27T07:25:00Z","modified":"2026-06-17T01:21:27Z","products":[{"vendor":"w3","product":"high_resolution_time_api"}],"references":[{"url":"http://www.cs.vu.nl/~herbertb/download/papers/anc_ndss17.pdf","tags":["x_refsource_MISC","x_transferred","Technical Description"]},{"url":"http://www.securityfocus.com/bid/97036","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://www.vusec.net/projects/anc","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-5928"},{"url":"https://github.com/advisories/GHSA-3m9f-698w-3mf8"}],"sources":{"cve":[{"id":"CVE-2017-5928","description":"The W3C High Resolution Time API, as implemented in various web browsers, does not consider that memory-reference times can be measured by a performance.now \"Time to Tick\" approach even with the https://bugzilla.mozilla.org/show_bug.cgi?id=1167489#c9 protection mechanism in place, which makes it easier for remote attackers to conduct AnC attacks via crafted JavaScript code.","status":"published","published":"2017-02-27T07:25:00Z","modified":"2024-08-05T15:18:48.372Z","updated_at":"2026-11-02T14:33:12.942409Z"}],"euvd":[{"id":"EUVD-2017-15003","description":"The W3C High Resolution Time API, as implemented in various web browsers, does not consider that memory-reference times can be measured by a performance.now \"Time to Tick\" approach even with the https://bugzilla.mozilla.org/show_bug.cgi?id=1167489#c9 protection mechanism in place, which makes it easier for remote attackers to conduct AnC attacks via crafted JavaScript code.","status":"published","published":"2017-02-27T07:25:00Z","modified":"2024-08-05T15:18:48Z","updated_at":"2026-11-03T02:39:13.965943Z"}],"ghsa":[{"id":"GHSA-3m9f-698w-3mf8","title":"The W3C High Resolution Time API, as implemented in various web browsers, does not consider that...","description":"The W3C High Resolution Time API, as implemented in various web browsers, does not consider that memory-reference times can be measured by a performance.now \"Time to Tick\" approach even with the https://bugzilla.mozilla.org/show_bug.cgi?id=1167489#c9 protection mechanism in place, which makes it easier for remote attackers to conduct AnC attacks via crafted JavaScript code.","status":"published","published":"2022-05-13T01:06:00Z","modified":"2023-02-01T05:02:54Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low"}],"updated_at":"2026-11-02T14:49:59.47413Z"}],"nvd":[{"id":"CVE-2017-5928","description":"The W3C High Resolution Time API, as implemented in various web browsers, does not consider that memory-reference times can be measured by a performance.now \"Time to Tick\" approach even with the https://bugzilla.mozilla.org/show_bug.cgi?id=1167489#c9 protection mechanism in place, which makes it easier for remote attackers to conduct AnC attacks via crafted JavaScript code.","status":"published","published":"2017-02-27T07:59:00.27Z","modified":"2026-06-17T01:21:27.06Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:03:43.325192Z"}]}}