{"id":"CVE-2018-0409","state":"PUBLISHED","title":"A vulnerability in the XCP Router service of the Cisco Unified Communications Manager IM & Presence Service (CUCM IM&P) and the Cisco TelePresence Video Communication Server (VCS) ","description":"A vulnerability in the XCP Router service of the Cisco Unified Communications Manager IM & Presence Service (CUCM IM&P) and the Cisco TelePresence Video Communication Server (VCS) and Expressway could allow an unauthenticated, remote attacker to cause a temporary service outage for all IM&P users, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending a malicious IPv4 or IPv6 packet to an affected device on TCP port 7400. An exploit could allow the attacker to overread a buffer, resulting in a crash and restart of the XCP Router service. Cisco Bug IDs: CSCvg97663, CSCvi55947.","publishedAt":"2018-08-15T20:00:00.000Z","updatedAt":"2024-11-26T14:48:15.449Z","severity":null,"assigner":"cisco","products":["Cisco Systems, Inc. Unified Communications Manager IM & Presence Service (CUCM IM&P)","Cisco Systems, Inc. TelePresence Video Communication Server (VCS) and Expressway"],"affected":[{"vendor":"Cisco Systems, Inc.","product":"Unified Communications Manager IM & Presence Service (CUCM IM&P)","versions":[{"version":"unspecified","status":"affected"}]},{"vendor":"Cisco Systems, Inc.","product":"TelePresence Video Communication Server (VCS) and Expressway","versions":[{"version":"unspecified","status":"affected"}]}],"references":["http://www.securitytracker.com/id/1041534","http://www.securityfocus.com/bid/105104","https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180815-ucmimps-dos","http://www.securitytracker.com/id/1041533","http://www.securityfocus.com/bid/105102"],"weaknesses":["CWE-20"],"ingestedAt":"2026-10-29T19:44:03.729Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2018/0xxx/CVE-2018-0409.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2018-0409","state":"PUBLISHED","datePublished":"2018-08-15T20:00:00.000Z","dateUpdated":"2024-11-26T14:48:15.449Z","assignerShortName":"cisco","assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateReserved":"2017-11-27T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A vulnerability in the XCP Router service of the Cisco Unified Communications Manager IM & Presence Service (CUCM IM&P) and the Cisco TelePresence Video Communication Server (VCS) and Expressway could allow an unauthenticated, remote attacker to cause a temporary service outage for all IM&P users, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending a malicious IPv4 or IPv6 packet to an affected device on TCP port 7400. An exploit could allow the attacker to overread a buffer, resulting in a crash and restart of the XCP Router service. 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