{"id":"CVE-2013-5566","aliases":["EUVD-2013-5406","GHSA-j3xh-96gv-642p"],"status":"published","title":"Cisco NX-OS 5.0 and earlier on MDS 9000 devices allows remote attackers to cause a denial of...","description":"Cisco NX-OS 5.0 and earlier on MDS 9000 devices allows remote attackers to cause a denial of service (supervisor CPU consumption) via Authentication Header (AH) authentication in a Virtual Router Redundancy Protocol (VRRP) frame, aka Bug ID CSCte27874.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01901,"percentile":0.79835,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119"],"published":"2013-11-08T02:00:00Z","modified":"2026-06-16T23:59:01Z","products":[{"vendor":"cisco","product":"nx-os"}],"references":[{"url":"http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5566","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Vendor Advisory"]},{"url":"http://tools.cisco.com/security/center/viewAlert.x?alertId=31663","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2013-5566"},{"url":"https://github.com/advisories/GHSA-j3xh-96gv-642p"}],"sources":{"cve":[{"id":"CVE-2013-5566","description":"Cisco NX-OS 5.0 and earlier on MDS 9000 devices allows remote attackers to cause a denial of service (supervisor CPU consumption) via Authentication Header (AH) authentication in a Virtual Router Redundancy Protocol (VRRP) frame, aka Bug ID CSCte27874.","status":"published","published":"2013-11-08T02:00:00Z","modified":"2024-09-16T17:14:03.313Z","updated_at":"2026-11-02T14:34:55.098814Z"}],"euvd":[{"id":"EUVD-2013-5406","description":"Cisco NX-OS 5.0 and earlier on MDS 9000 devices allows remote attackers to cause a denial of service (supervisor CPU consumption) via Authentication Header (AH) authentication in a Virtual Router Redundancy Protocol (VRRP) frame, aka Bug ID CSCte27874.","status":"published","published":"2013-11-08T02:00:00Z","modified":"2024-09-16T17:14:03Z","updated_at":"2026-11-03T00:55:44.31512Z"}],"ghsa":[{"id":"GHSA-j3xh-96gv-642p","title":"Cisco NX-OS 5.0 and earlier on MDS 9000 devices allows remote attackers to cause a denial of...","description":"Cisco NX-OS 5.0 and earlier on MDS 9000 devices allows remote attackers to cause a denial of service (supervisor CPU consumption) via Authentication Header (AH) authentication in a Virtual Router Redundancy Protocol (VRRP) frame, aka Bug ID CSCte27874.","status":"published","published":"2022-05-17T04:58:09Z","modified":"2023-01-28T05:02:53Z","cwes":["CWE-119"],"updated_at":"2026-11-02T14:43:52.1532Z"}],"nvd":[{"id":"CVE-2013-5566","description":"Cisco NX-OS 5.0 and earlier on MDS 9000 devices allows remote attackers to cause a denial of service (supervisor CPU consumption) via Authentication Header (AH) authentication in a Virtual Router Redundancy Protocol (VRRP) frame, aka Bug ID CSCte27874.","status":"published","published":"2013-11-08T04:47:23.073Z","modified":"2026-06-16T23:59:01.647Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:02:40.988689Z"}]}}