A vulnerability in the Cisco Discovery Protocol (formerly known as CDP) subsystem of devices running, or based on, Cisco NX-OS Software contain a vulnerability that could allow an unauthenticated, adjacent attacker to create a denial of service (DoS) condition. The vulnerability is due to a failure to properly validate certain fields within a Cisco Discovery Protocol message prior to processing it. An attacker with the ability to submit a Cisco Discovery Protocol message designed to trigger the issue could cause a DoS condition on an affected device while the device restarts. This vulnerability affects Firepower 4100 Series Next-Generation Firewall, Firepower 9300 Security Appliance, MDS 9000 Series Multilayer Director Switches, Nexus 1000V Series Switches, Nexus 1100 Series Cloud Services Platforms, Nexus 2000 Series Switches, Nexus 3000 Series Switches, Nexus 3500 Platform Switches, Nexus 3600 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 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: CSCvc89242, CSCve40943, CSCve40953, CSCve40965, CSCve40970, CSCve40978, CSCve40992, CSCve41000, CSCve41007.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.5, indicating it requires adjacent network access 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 78 products from cisco, from cisco, from cisco and 75 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.
2018-06-21T11:29:00.773
2024-11-21T03:37:59.720
Modified
CVSSv3.1: 6.5 (MEDIUM)
AV:A/AC:L/Au:N/C:N/I:N/A:C
6.5
6.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | cisco | nx-os | < 7.1\(5\)n1\(1\) | Yes |
| Operating System | cisco | nx-os | < 7.3\(3\)n1\(1\) | Yes |
| Operating System | cisco | nx-os | 6.0 | Yes |
| Operating System | cisco | nx-os | 7.0 | Yes |
| Operating System | cisco | nx-os | 7.2 | Yes |
| Hardware | cisco | nexus_5000 | - | No |
| Hardware | cisco | nexus_5010 | - | No |
| Hardware | cisco | nexus_5020 | - | No |
| Hardware | cisco | nexus_5548p | - | No |
| Hardware | cisco | nexus_5548up | - | No |
| Hardware | cisco | nexus_5596t | - | No |
| Hardware | cisco | nexus_5596up | - | No |
| Hardware | cisco | nexus_56128p | - | No |
| Hardware | cisco | nexus_5624q | - | No |
| Hardware | cisco | nexus_5648q | - | No |
| Hardware | cisco | nexus_5672up | - | No |
| Hardware | cisco | nexus_5696q | - | No |
| Operating System | cisco | nx-os | < 6.2\(20\) | Yes |
| Operating System | cisco | nx-os | < 7.2\(2\)d1\(3\) | Yes |
| Operating System | cisco | nx-os | < 7.3\(2\)d1\(1\) | Yes |
| Operating System | cisco | nx-os | < 8.1\(2\) | Yes |
| Operating System | cisco | nx-os | < 8.2\(1\) | Yes |
| Operating System | cisco | nx-os | 8.0 | Yes |
| Hardware | cisco | nexus_7000 | - | No |
| Hardware | cisco | nexus_7700 | - | No |
| Operating System | cisco | nx-os | < 7.0\(3\)i3 | Yes |
| Operating System | cisco | nx-os | < 7.0\(3\)i7\(1\) | Yes |
| Hardware | cisco | nexus_92160yc-x | - | No |
| Hardware | cisco | nexus_92304qc | - | No |
| Hardware | cisco | nexus_9236c | - | No |
| Hardware | cisco | nexus_9272q | - | No |
| Hardware | cisco | nexus_93108tc-ex | - | No |
| Hardware | cisco | nexus_93120tx | - | No |
| Hardware | cisco | nexus_93128tx | - | No |
| Hardware | cisco | nexus_93180yc-ex | - | No |
| Hardware | cisco | nexus_9332pq | - | No |
| Hardware | cisco | nexus_9372px | - | No |
| Hardware | cisco | nexus_9372tx | - | No |
| Hardware | cisco | nexus_9396px | - | No |
| Hardware | cisco | nexus_9396tx | - | No |
| Hardware | cisco | nexus_9504 | - | No |
| Hardware | cisco | nexus_9508 | - | No |
| Hardware | cisco | nexus_9516 | - | No |
| Hardware | cisco | nexus_n9k-c9508-fm-r | - | No |
| Hardware | cisco | nexus_n9k-x9636c-r | - | No |
| Hardware | cisco | nexus_n9k-x9636q-r | - | No |
| Operating System | cisco | nx-os | < 7.0\(3\)i7\(1\) | Yes |
| Hardware | cisco | nexus_172tq-xl | - | No |
| Hardware | cisco | nexus_3016 | - | No |
| Hardware | cisco | nexus_3048 | - | No |
| Hardware | cisco | nexus_3064-32t | - | No |
| Hardware | cisco | nexus_3064-t | - | No |
| Hardware | cisco | nexus_3064-x | - | No |
| Hardware | cisco | nexus_3100-v | - | No |
| Hardware | cisco | nexus_31128pq | - | No |
| Hardware | cisco | nexus_3132c-z | - | No |
| Hardware | cisco | nexus_3132q | - | No |
| Hardware | cisco | nexus_3132q-x | - | No |
| Hardware | cisco | nexus_3132q-xl | - | No |
| Hardware | cisco | nexus_3164q | - | No |
| Hardware | cisco | nexus_3172pq | - | No |
| Hardware | cisco | nexus_3172pq-xl | - | No |
| Hardware | cisco | nexus_3172tq | - | No |
| Hardware | cisco | nexus_3172tq-32t | - | No |
| Hardware | cisco | nexus_3232c | - | No |
| Hardware | cisco | nexus_3264c-e | - | No |
| Hardware | cisco | nexus_3264q | - | No |
| Hardware | cisco | nexus_34180yc | - | No |
| Hardware | cisco | nexus_3524-x | - | No |
| Hardware | cisco | nexus_3524-xl | - | No |
| Hardware | cisco | nexus_3548 | - | No |
| Hardware | cisco | nexus_3548-x | - | No |
| Hardware | cisco | nexus_3548-xl | - | No |
| Hardware | cisco | nexus_3636c-r | - | No |
| Hardware | cisco | nexus_c36180yc-r | - | No |
| Operating System | cisco | nx-os | < 7.3\(3\)n1\(1\) | Yes |
| Hardware | cisco | nexus_6001p | - | No |
| Hardware | cisco | nexus_6001t | - | No |
| Operating System | cisco | nx-os | < 8.1\(1a\) | Yes |
| Hardware | cisco | mds_9000 | - | No |
| Operating System | cisco | nx-os | < 2.2\(8g\) | Yes |
| Operating System | cisco | nx-os | < 3.1\(2f\) | Yes |
| Hardware | cisco | ucs_6120xp | - | No |
| Hardware | cisco | ucs_6140xp | - | No |
| Hardware | cisco | ucs_6248up | - | No |
| Hardware | cisco | ucs_6296up | - | No |
| Hardware | cisco | ucs_6324 | - | No |
| Hardware | cisco | ucs_6332 | - | No |
| Operating System | cisco | firepower_extensible_operating_system | < 2.0.1.153 | Yes |
| Operating System | cisco | firepower_extensible_operating_system | < 2.1.1.86 | Yes |
| Operating System | cisco | firepower_extensible_operating_system | < 2.2.1.70 | Yes |
| Operating System | cisco | fxos | < 2.2.2.14 | Yes |
| Hardware | cisco | firepower_4110 | - | No |
| Hardware | cisco | firepower_4120 | - | No |
| Hardware | cisco | firepower_4140 | - | No |
| Hardware | cisco | firepower_4150 | - | No |
| Operating System | cisco | firepower_extensible_operating_system | < 2.1.1.86 | Yes |
| Operating System | cisco | firepower_extensible_operating_system | < 2.2.1.70 | Yes |
| Operating System | cisco | fxos | < 2.0.1.152 | Yes |
| Operating System | cisco | fxos | < 2.2.2.14 | Yes |
| Hardware | cisco | firepower_9300_security_appliance | - | 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.