A vulnerability in the SSH key management for the Cisco Nexus 9000 Series Application Centric Infrastructure (ACI) Mode Switch Software could allow an unauthenticated, remote attacker to connect to the affected system with the privileges of the root user. The vulnerability is due to the presence of a default SSH key pair that is present in all devices. An attacker could exploit this vulnerability by opening an SSH connection via IPv6 to a targeted device using the extracted key materials. An exploit could allow the attacker to access the system with the privileges of the root user. This vulnerability is only exploitable over IPv6; IPv4 is not vulnerable.
This vulnerability carries a CRITICAL severity rating with a CVSS v3.1 score of 9.8, 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 confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 26 products from cisco, from cisco, from cisco and 23 others, organizations running these solutions should prioritize assessment and patching.
First disclosed in 2019, 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.
2019-05-03T17:29:00.813
2024-11-21T04:37:24.863
Modified
CVSSv3.1: 9.8 (CRITICAL)
AV:N/AC:L/Au:N/C:C/I:C/A:C
10.0
10.0
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | cisco | nexus_9332pq_firmware | 14.0\(3d\) | Yes |
| Hardware | cisco | nexus_9332pq | - | No |
| Operating System | cisco | nexus_93180yc-ex_firmware | 14.0\(3d\) | Yes |
| Hardware | cisco | nexus_93180yc-ex | - | No |
| Operating System | cisco | nexus_93128tx_firmware | 14.0\(3d\) | Yes |
| Hardware | cisco | nexus_93128tx | - | No |
| Operating System | cisco | nexus_93120tx_firmware | 14.0\(3d\) | Yes |
| Hardware | cisco | nexus_93120tx | - | No |
| Operating System | cisco | nexus_93108tc-ex_firmware | 14.0\(3d\) | Yes |
| Hardware | cisco | nexus_93108tc-ex | - | No |
| Operating System | cisco | nexus_9516_firmware | 14.0\(3d\) | Yes |
| Hardware | cisco | nexus_9516 | - | No |
| Operating System | cisco | nexus_9508_firmware | 14.0\(3d\) | Yes |
| Hardware | cisco | nexus_9508 | - | No |
| Operating System | cisco | nexus_9504_firmware | 14.0\(3d\) | Yes |
| Hardware | cisco | nexus_9504 | - | No |
| Operating System | cisco | nexus_9500_firmware | 14.0\(3d\) | Yes |
| Hardware | cisco | nexus_9500 | - | No |
| Operating System | cisco | nexus_9396tx_firmware | 14.0\(3d\) | Yes |
| Hardware | cisco | nexus_9396tx | - | No |
| Operating System | cisco | nexus_9396px_firmware | 14.0\(3d\) | Yes |
| Hardware | cisco | nexus_9396px | - | No |
| Operating System | cisco | nexus_9372tx_firmware | 14.0\(3d\) | Yes |
| Hardware | cisco | nexus_9372tx | - | No |
| Operating System | cisco | nexus_9372px_firmware | 14.0\(3d\) | Yes |
| Hardware | cisco | nexus_9372px | - | No |
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.