{"id":"CVE-2016-1356","aliases":["EUVD-2016-2455","GHSA-j66f-ff6x-m5fc"],"status":"published","title":"Cisco FireSIGHT System Software 6.1.0 does not use a constant-time algorithm for verifying...","description":"Cisco FireSIGHT System Software 6.1.0 does not use a constant-time algorithm for verifying credentials, which makes it easier for remote attackers to enumerate valid usernames by measuring timing differences, aka Bug ID CSCuy41615.","severity":{"version":"3.0","score":3.7,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.00831,"percentile":0.57821,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-255","CWE-287"],"published":"2016-03-03T22:00:00Z","modified":"2026-06-17T00:41:46Z","products":[{"vendor":"cisco","product":"firesight_system_software"}],"references":[{"url":"http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160302-FireSIGHT1","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Vendor Advisory"]},{"url":"http://www.securitytracker.com/id/1035189","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-1356"},{"url":"https://github.com/advisories/GHSA-j66f-ff6x-m5fc"}],"sources":{"cve":[{"id":"CVE-2016-1356","description":"Cisco FireSIGHT System Software 6.1.0 does not use a constant-time algorithm for verifying credentials, which makes it easier for remote attackers to enumerate valid usernames by measuring timing differences, aka Bug ID CSCuy41615.","status":"published","published":"2016-03-03T22:00:00Z","modified":"2024-08-05T22:55:14.482Z","updated_at":"2026-11-02T14:33:35.841056Z"}],"euvd":[{"id":"EUVD-2016-2455","description":"Cisco FireSIGHT System Software 6.1.0 does not use a constant-time algorithm for verifying credentials, which makes it easier for remote attackers to enumerate valid usernames by measuring timing differences, aka Bug ID CSCuy41615.","status":"published","published":"2016-03-03T22:00:00Z","modified":"2024-08-05T22:55:14Z","updated_at":"2026-11-03T02:22:57.428811Z"}],"ghsa":[{"id":"GHSA-j66f-ff6x-m5fc","title":"Cisco FireSIGHT System Software 6.1.0 does not use a constant-time algorithm for verifying...","description":"Cisco FireSIGHT System Software 6.1.0 does not use a constant-time algorithm for verifying credentials, which makes it easier for remote attackers to enumerate valid usernames by measuring timing differences, aka Bug ID CSCuy41615.","status":"published","published":"2022-05-17T03:32:06Z","modified":"2023-01-27T05:08:31Z","cvss":[{"version":"3.0","score":3.7,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:43:18.355701Z"}],"nvd":[{"id":"CVE-2016-1356","description":"Cisco FireSIGHT System Software 6.1.0 does not use a constant-time algorithm for verifying credentials, which makes it easier for remote attackers to enumerate valid usernames by measuring timing differences, aka Bug ID CSCuy41615.","status":"published","published":"2016-03-03T22:59:13.333Z","modified":"2026-06-17T00:41:46.42Z","cvss":[{"version":"3.0","score":3.7,"vector":"CVSS:3.0/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"}],"cwes":["CWE-255","CWE-287"],"updated_at":"2026-11-02T14:03:22.479119Z"}]}}