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.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 2 products from cisco, from cisco organizations running these solutions should prioritize assessment and patching.
First disclosed in 2018, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.
2018-08-15T20:29:00.533
2024-11-21T03:38:10.117
Modified
CVSSv3.1: 7.5 (HIGH)
AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | cisco | telepresence_video_communication_server | x7.0.1 | Yes |
| Application | cisco | telepresence_video_communication_server | x7.2.4 | Yes |
| Application | cisco | telepresence_video_communication_server | x8.1 | Yes |
| Application | cisco | telepresence_video_communication_server | x8.2.2 | Yes |
| Application | cisco | telepresence_video_communication_server | x8.5 | Yes |
| Application | cisco | telepresence_video_communication_server | x8.6 | Yes |
| Application | cisco | telepresence_video_communication_server | x8.7 | Yes |
| Application | cisco | telepresence_video_communication_server | x8.8 | Yes |
| Application | cisco | telepresence_video_communication_server | x8.9 | Yes |
| Application | cisco | telepresence_video_communication_server | x8.10 | Yes |
| Application | cisco | telepresence_video_communication_server | x8.10.4 | Yes |
| Application | cisco | unified_communications_manager_im_and_presence_service | 11.5 | Yes |
| Application | cisco | unified_communications_manager_im_and_presence_service | 11.5\(1\) | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For cisco's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.