{"id":"CVE-2014-2109","aliases":["EUVD-2014-2149","GHSA-6p6v-7hf9-h7jf"],"status":"published","title":"The TCP Input module in Cisco IOS 12.2 through 12.4 and 15.0 through 15.4, when NAT is used,...","description":"The TCP Input module in Cisco IOS 12.2 through 12.4 and 15.0 through 15.4, when NAT is used, allows remote attackers to cause a denial of service (memory consumption or device reload) via crafted TCP packets, aka Bug IDs CSCuh33843 and CSCuj41494.","severity":{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.0228,"percentile":0.83243,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2014-03-27T21:00:00Z","modified":"2026-06-17T00:06:04Z","products":[{"vendor":"cisco","product":"ios"}],"references":[{"url":"http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140326-nat","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/66470","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2014-2109"},{"url":"https://github.com/advisories/GHSA-6p6v-7hf9-h7jf"}],"sources":{"cve":[{"id":"CVE-2014-2109","description":"The TCP Input module in Cisco IOS 12.2 through 12.4 and 15.0 through 15.4, when NAT is used, allows remote attackers to cause a denial of service (memory consumption or device reload) via crafted TCP packets, aka Bug IDs CSCuh33843 and CSCuj41494.","status":"published","published":"2014-03-27T21:00:00Z","modified":"2024-08-06T10:05:59.581Z","updated_at":"2026-11-02T14:33:43.566796Z"}],"euvd":[{"id":"EUVD-2014-2149","description":"The TCP Input module in Cisco IOS 12.2 through 12.4 and 15.0 through 15.4, when NAT is used, allows remote attackers to cause a denial of service (memory consumption or device reload) via crafted TCP packets, aka Bug IDs CSCuh33843 and CSCuj41494.","status":"published","published":"2014-03-27T21:00:00Z","modified":"2024-08-06T10:05:59Z","updated_at":"2026-11-03T01:57:15.270389Z"}],"ghsa":[{"id":"GHSA-6p6v-7hf9-h7jf","title":"The TCP Input module in Cisco IOS 12.2 through 12.4 and 15.0 through 15.4, when NAT is used,...","description":"The TCP Input module in Cisco IOS 12.2 through 12.4 and 15.0 through 15.4, when NAT is used, allows remote attackers to cause a denial of service (memory consumption or device reload) via crafted TCP packets, aka Bug IDs CSCuh33843 and CSCuj41494.","status":"published","published":"2022-05-17T02:44:28Z","modified":"2023-01-27T05:06:15Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:42:52.308172Z"}],"nvd":[{"id":"CVE-2014-2109","description":"The TCP Input module in Cisco IOS 12.2 through 12.4 and 15.0 through 15.4, when NAT is used, allows remote attackers to cause a denial of service (memory consumption or device reload) via crafted TCP packets, aka Bug IDs CSCuh33843 and CSCuj41494.","status":"published","published":"2014-03-27T21:55:09.033Z","modified":"2026-06-17T00:06:04.813Z","cvss":[{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:02:53.710973Z"}]}}