A vulnerability in the Cisco Fabric Services (CFS) component of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device. The vulnerability exists because the affected software insufficiently validates Cisco Fabric Services packet headers when the software processes packet data. An attacker could exploit this vulnerability by sending a maliciously crafted Cisco Fabric Services packet to an affected device. A successful exploit could allow the attacker to cause a buffer overflow condition on the device, which could allow the attacker to execute arbitrary code on the device. This vulnerability affects the following if configured to use Cisco Fabric Services: Firepower 4100 Series Next-Generation Firewalls, Firepower 9300 Security Appliance, MDS 9000 Series Multilayer Switches, Nexus 2000 Series Fabric Extenders, Nexus 3000 Series Switches, Nexus 3500 Platform Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Nexus 9000 Series Switches in standalone NX-OS mode, Nexus 9500 R-Series Line Cards and Fabric Modules, UCS 6100 Series Fabric Interconnects, UCS 6200 Series Fabric Interconnects, UCS 6300 Series Fabric Interconnects. Cisco Bug IDs: CSCvd69943, CSCve02429, CSCve02433, CSCve02435, CSCve02445, CSCve04859.
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 10 products from cisco, from cisco, from cisco and 7 others, 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.
2018-06-20T21:29:00.717
2024-11-21T03:37:57.607
Modified
CVSSv3.0: 9.8 (CRITICAL)
AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | cisco | nexus_7000_firmware | 7.3\(2\)d1\(0.49\) | Yes |
| Operating System | cisco | nexus_7000_firmware | 8.0\(1\) | Yes |
| Operating System | cisco | nexus_7000_firmware | 8.1\(0.112\)s0 | Yes |
| Hardware | cisco | nexus_7000 | - | No |
| Operating System | cisco | nexus_5000_firmware | 7.0\(0\)hsk\(0.357\) | Yes |
| Operating System | cisco | nexus_5000_firmware | 8.1\(0.2\)s0 | Yes |
| Operating System | cisco | nexus_5000_firmware | 8.8\(0.1\) | Yes |
| Hardware | cisco | nexus_5000 | - | No |
| Operating System | cisco | firepower_9000_firmware | r211 | Yes |
| Operating System | cisco | firepower_9000_firmware | r231 | Yes |
| Hardware | cisco | firepower_9000 | - | No |
| Operating System | cisco | nexus_9000_firmware | 8.1\(0\)bd\(0.20\) | Yes |
| Hardware | cisco | nexus_9000 | - | No |
| Operating System | cisco | unified_computing_system_firmware | 3.1\(3a\)a | Yes |
| Operating System | cisco | unified_computing_system_firmware | 7.0\(0\)hsk\(0.357\) | Yes |
| Hardware | cisco | unified_computing_system | - | 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.