Buffer overflow in Cisco NX-OS on Nexus 1000V devices for VMware vSphere 7.3(0)ZN(0.9); Nexus 3000 devices 6.0(2)U5(1.41), 7.0(3)I2(0.373), and 7.3(0)ZN(0.83); Nexus 4000 devices 4.1(2)E1(1b); Nexus 7000 devices 6.2(14)S1; Nexus 9000 devices 7.3(0)ZN(0.9); and MDS 9000 devices 6.2 (13) and 7.1(0)ZN(91.99) and MDS SAN-OS 7.1(0)ZN(91.99) allows remote attackers to cause a denial of service (device outage) via a crafted ARP packet, related to incorrect MTU validation, aka Bug IDs CSCuv71933, CSCuv61341, CSCuv61321, CSCuu78074, CSCut37060, CSCuv61266, CSCuv61351, CSCuv61358, and CSCuv61366.
CVE-2015-4323 is a security vulnerability that . Impacting 28 products from cisco, from cisco, from cisco and 25 others, organizations running these solutions should prioritize assessment and patching.
First disclosed in 2015, 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.
2015-08-19T23:59:02.590
2026-05-06T22:30:45.220
Modified
CVSSv2: 6.1 (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 | 6.2\(14\)s1 | Yes |
| Hardware | cisco | nexus_7000 | - | No |
| Hardware | cisco | nexus_7700 | - | No |
| Operating System | cisco | nx-os | 6.0\(2\)u5\(1.41\) | Yes |
| Operating System | cisco | nx-os | 7.0\(3\)i2\(0.373\) | Yes |
| Operating System | cisco | nx-os | 7.3\(0\)zn\(0.83\) | Yes |
| Hardware | cisco | nexus_3016 | - | No |
| Hardware | cisco | nexus_3048 | - | No |
| Hardware | cisco | nexus_3064 | - | No |
| Hardware | cisco | nexus_31128pq | * | No |
| Hardware | cisco | nexus_3132q | - | No |
| Hardware | cisco | nexus_3164q | - | No |
| Hardware | cisco | nexus_3172 | - | No |
| Hardware | cisco | nexus_3232c | - | No |
| Hardware | cisco | nexus_3264q | - | No |
| Hardware | cisco | nexus_3524 | - | No |
| Hardware | cisco | nexus_3548 | - | No |
| Operating System | cisco | nx-os | 7.3\(0\)zn\(0.9\) | Yes |
| Hardware | cisco | nexus_93120tx | - | No |
| Hardware | cisco | nexus_93128tx | - | No |
| Hardware | cisco | nexus_9332pq | - | No |
| Hardware | cisco | nexus_9336pq_aci_spine | - | 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 |
| Operating System | cisco | mds_9000_nx-os | 6.2\(13\) | Yes |
| Operating System | cisco | mds_9000_nx-os | 7.1\(0\)zn\(91.99\) | Yes |
| Operating System | cisco | nx-os | 7.3\(0\)zn\(0.9\) | Yes |
| Application | cisco | nexus_1000v | - | No |
| Operating System | cisco | nx-os | 4.1\(2\)e1\(1b\) | Yes |
| Hardware | cisco | nexus_4001i | - | 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.