A vulnerability in the Link Layer Discovery Protocol (LLDP) feature for Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) Mode could allow an unauthenticated, adjacent attacker to cause a memory leak, which could result in an unexpected reload of the device. This vulnerability is due to incorrect error checking when parsing ingress LLDP packets. An attacker could exploit this vulnerability by sending a steady stream of crafted LLDP packets to an affected device. A successful exploit could allow the attacker to cause a memory leak, which could result in a denial of service (DoS) condition when the device unexpectedly reloads. Note: This vulnerability cannot be exploited by transit traffic through the device. The crafted LLDP packet must be targeted to a directly connected interface, and the attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent). In addition, the attack surface for this vulnerability can be reduced by disabling LLDP on interfaces where it is not required.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.4, 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 47 products from cisco, from cisco, from cisco and 44 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2023, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2023-02-23T20:15:13.557
2024-11-21T07:40:31.967
Modified
CVSSv3.1: 7.4 (HIGH)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | cisco | nx-os | 15.2\(1g\) | Yes |
| Operating System | cisco | nx-os | 15.2\(2e\) | Yes |
| Operating System | cisco | nx-os | 15.2\(2f\) | Yes |
| Operating System | cisco | nx-os | 15.2\(2g\) | Yes |
| Operating System | cisco | nx-os | 15.2\(2h\) | Yes |
| Operating System | cisco | nx-os | 15.2\(3e\) | Yes |
| Operating System | cisco | nx-os | 15.2\(3f\) | Yes |
| Operating System | cisco | nx-os | 15.2\(3g\) | Yes |
| Operating System | cisco | nx-os | 15.2\(4d\) | Yes |
| Operating System | cisco | nx-os | 15.2\(4e\) | Yes |
| Operating System | cisco | nx-os | 15.2\(4f\) | Yes |
| Operating System | cisco | nx-os | 15.2\(5c\) | Yes |
| Operating System | cisco | nx-os | 15.2\(5d\) | Yes |
| Operating System | cisco | nx-os | 15.2\(5e\) | Yes |
| Operating System | cisco | nx-os | 16.0\(1g\) | Yes |
| Operating System | cisco | nx-os | 16.0\(1j\) | Yes |
| Hardware | cisco | nexus_9000v | - | No |
| Hardware | cisco | nexus_92160yc-x | - | No |
| Hardware | cisco | nexus_92300yc | - | No |
| Hardware | cisco | nexus_92304qc | - | No |
| Hardware | cisco | nexus_92348gc-x | - | No |
| Hardware | cisco | nexus_9236c | - | No |
| Hardware | cisco | nexus_9272q | - | No |
| Hardware | cisco | nexus_93108tc-ex | - | No |
| Hardware | cisco | nexus_93108tc-ex-24 | - | No |
| Hardware | cisco | nexus_93108tc-fx | - | No |
| Hardware | cisco | nexus_93108tc-fx-24 | - | No |
| Hardware | cisco | nexus_93108tc-fx3p | - | No |
| Hardware | cisco | nexus_93120tx | - | No |
| Hardware | cisco | nexus_93128tx | - | No |
| Hardware | cisco | nexus_9316d-gx | - | No |
| Hardware | cisco | nexus_93180lc-ex | - | No |
| Hardware | cisco | nexus_93180yc-ex | - | No |
| Hardware | cisco | nexus_93180yc-ex-24 | - | No |
| Hardware | cisco | nexus_93180yc-fx | - | No |
| Hardware | cisco | nexus_93180yc-fx-24 | - | No |
| Hardware | cisco | nexus_93180yc-fx3 | - | No |
| Hardware | cisco | nexus_93180yc-fx3s | - | No |
| Hardware | cisco | nexus_93216tc-fx2 | - | No |
| Hardware | cisco | nexus_93240yc-fx2 | - | No |
| Hardware | cisco | nexus_9332c | - | No |
| Hardware | cisco | nexus_9332d-gx2b | - | No |
| Hardware | cisco | nexus_9332pq | - | No |
| Hardware | cisco | nexus_93360yc-fx2 | - | No |
| Hardware | cisco | nexus_9336c-fx2 | - | No |
| Hardware | cisco | nexus_9336c-fx2-e | - | No |
| Hardware | cisco | nexus_9336pq_aci_spine | - | No |
| Hardware | cisco | nexus_9348d-gx2a | - | No |
| Hardware | cisco | nexus_9348gc-fxp | - | No |
| Hardware | cisco | nexus_93600cd-gx | - | No |
| Hardware | cisco | nexus_9364c | - | No |
| Hardware | cisco | nexus_9364c-gx | - | No |
| Hardware | cisco | nexus_9364d-gx2a | - | No |
| Hardware | cisco | nexus_9372px | - | No |
| Hardware | cisco | nexus_9372px-e | - | No |
| Hardware | cisco | nexus_9372tx | - | No |
| Hardware | cisco | nexus_9372tx-e | - | No |
| Hardware | cisco | nexus_9396px | - | No |
| Hardware | cisco | nexus_9396tx | - | No |
| Hardware | cisco | nexus_9408 | - | No |
| Hardware | cisco | nexus_9508 | - | No |
| Hardware | cisco | nexus_9808 | - | 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.