{"id":"CVE-2014-3309","aliases":["EUVD-2014-3322","GHSA-xrcg-wf6c-6jc9"],"status":"published","title":"The NTP implementation in Cisco IOS and IOS XE does not properly support use of the access-group...","description":"The NTP implementation in Cisco IOS and IOS XE does not properly support use of the access-group command for a \"deny all\" configuration, which allows remote attackers to bypass intended restrictions on time synchronization via a standard query, aka Bug ID CSCuj66318.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02112,"percentile":0.81932,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-264"],"published":"2014-07-09T10:00:00Z","modified":"2026-06-17T00:07:57Z","products":[{"vendor":"cisco","product":"ios"},{"vendor":"cisco","product":"ios_xe"}],"references":[{"url":"http://www.securitytracker.com/id/1030549","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3309","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/68463","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/94420","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2014-3309"},{"url":"https://github.com/advisories/GHSA-xrcg-wf6c-6jc9"}],"sources":{"cve":[{"id":"CVE-2014-3309","description":"The NTP implementation in Cisco IOS and IOS XE does not properly support use of the access-group command for a \"deny all\" configuration, which allows remote attackers to bypass intended restrictions on time synchronization via a standard query, aka Bug ID CSCuj66318.","status":"published","published":"2014-07-09T10:00:00Z","modified":"2024-08-06T10:35:57.129Z","updated_at":"2026-11-02T14:33:44.23164Z"}],"euvd":[{"id":"EUVD-2014-3322","description":"The NTP implementation in Cisco IOS and IOS XE does not properly support use of the access-group command for a \"deny all\" configuration, which allows remote attackers to bypass intended restrictions on time synchronization via a standard query, aka Bug ID CSCuj66318.","status":"published","published":"2014-07-09T10:00:00Z","modified":"2024-08-06T10:35:57Z","updated_at":"2026-11-03T01:57:11.29077Z"}],"ghsa":[{"id":"GHSA-xrcg-wf6c-6jc9","title":"The NTP implementation in Cisco IOS and IOS XE does not properly support use of the access-group...","description":"The NTP implementation in Cisco IOS and IOS XE does not properly support use of the access-group command for a \"deny all\" configuration, which allows remote attackers to bypass intended restrictions on time synchronization via a standard query, aka Bug ID CSCuj66318.","status":"published","published":"2022-05-17T01:25:25Z","modified":"2023-02-03T05:04:03Z","updated_at":"2026-11-02T14:53:28.881715Z"}],"nvd":[{"id":"CVE-2014-3309","description":"The NTP implementation in Cisco IOS and IOS XE does not properly support use of the access-group command for a \"deny all\" configuration, which allows remote attackers to bypass intended restrictions on time synchronization via a standard query, aka Bug ID CSCuj66318.","status":"published","published":"2014-07-09T11:07:01.447Z","modified":"2026-06-17T00:07:57.85Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-264"],"updated_at":"2026-11-02T14:02:54.827864Z"}]}}