Buffer overflow in Cisco NX-OS on Nexus 1000V devices for VMware vSphere 7.3(0)ZN(0.9)…
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 34
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:nx-os:6.2\(14\)s1:*:*:*:*:*:*:* | 6.2(14)s1 | Vulnerable | Cisco |
| cpe:2.3:h:cisco:nexus_7000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:nexus_7700:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:nx-os:6.0\(2\)u5\(1.41\):*:*:*:*:*:*:* | 6.0(2)u5(1.41) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:nx-os:7.0\(3\)i2\(0.373\):*:*:*:*:*:*:* | 7.0(3)i2(0.373) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:nx-os:7.3\(0\)zn\(0.83\):*:*:*:*:*:*:* | 7.3(0)zn(0.83) | Vulnerable | Cisco |
| cpe:2.3:h:cisco:nexus_3016:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:nexus_3048:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:nexus_3064:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:nexus_31128pq:*:*:*:*:*:*:*:* | all versions | Running on | Cisco |
- cpe:2.3:o:cisco:nx-os:6.2\(14\)s1:*:*:*:*:*:*:* Versions 6.2(14)s1 Vulnerable ·Cisco
- cpe:2.3:h:cisco:nexus_7000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:nexus_7700:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:nx-os:6.0\(2\)u5\(1.41\):*:*:*:*:*:*:* Versions 6.0(2)u5(1.41) Vulnerable ·Cisco
- cpe:2.3:o:cisco:nx-os:7.0\(3\)i2\(0.373\):*:*:*:*:*:*:* Versions 7.0(3)i2(0.373) Vulnerable ·Cisco
- cpe:2.3:o:cisco:nx-os:7.3\(0\)zn\(0.83\):*:*:*:*:*:*:* Versions 7.3(0)zn(0.83) Vulnerable ·Cisco
- cpe:2.3:h:cisco:nexus_3016:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:nexus_3048:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:nexus_3064:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:nexus_31128pq:*:*:*:*:*:*:*:* Versions all versions Running on ·Cisco
Show 24 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:cisco:nexus_3132q:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:nexus_3164q:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:nexus_3172:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:nexus_3232c:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:nexus_3264q:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:nexus_3524:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:nexus_3548:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:nx-os:7.3\(0\)zn\(0.9\):*:*:*:*:*:*:* | 7.3(0)zn(0.9) | Vulnerable | Cisco |
| cpe:2.3:h:cisco:nexus_93120tx:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:nexus_93128tx:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:nexus_9332pq:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:nexus_9336pq_aci_spine:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:nexus_9372px:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:nexus_9372tx:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:nexus_9396px:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:nexus_9396tx:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:nexus_9504:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:nexus_9508:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:nexus_9516:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:mds_9000_nx-os:6.2\(13\):*:*:*:*:*:*:* | 6.2(13) | Vulnerable | Cisco |
| cpe:2.3:o:cisco:mds_9000_nx-os:7.1\(0\)zn\(91.99\):*:*:*:*:*:*:* | 7.1(0)zn(91.99) | Vulnerable | Cisco |
| cpe:2.3:a:cisco:nexus_1000v:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:nx-os:4.1\(2\)e1\(1b\):*:*:*:*:*:*:* | 4.1(2)e1(1b) | Vulnerable | Cisco |
| cpe:2.3:h:cisco:nexus_4001i:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
- cpe:2.3:h:cisco:nexus_3132q:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:nexus_3164q:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:nexus_3172:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:nexus_3232c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:nexus_3264q:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:nexus_3524:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:nexus_3548:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:nx-os:7.3\(0\)zn\(0.9\):*:*:*:*:*:*:* Versions 7.3(0)zn(0.9) Vulnerable ·Cisco
- cpe:2.3:h:cisco:nexus_93120tx:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:nexus_93128tx:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:nexus_9332pq:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:nexus_9336pq_aci_spine:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:nexus_9372px:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:nexus_9372tx:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:nexus_9396px:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:nexus_9396tx:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:nexus_9504:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:nexus_9508:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:nexus_9516:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:mds_9000_nx-os:6.2\(13\):*:*:*:*:*:*:* Versions 6.2(13) Vulnerable ·Cisco
- cpe:2.3:o:cisco:mds_9000_nx-os:7.1\(0\)zn\(91.99\):*:*:*:*:*:*:* Versions 7.1(0)zn(91.99) Vulnerable ·Cisco
- cpe:2.3:a:cisco:nexus_1000v:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:nx-os:4.1\(2\)e1\(1b\):*:*:*:*:*:*:* Versions 4.1(2)e1(1b) Vulnerable ·Cisco
- cpe:2.3:h:cisco:nexus_4001i:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2015-4323
- 2026-10-03 Alias added: GHSA-f846-7hhm-3qxh
References
More Cisco Mds 9000 Nx-os vulnerabilities
- TI-2017-04414 Memory corruption in Cisco NX-OS Software Fibre Channel over Ethernet CVSS 3.1MEDIUM 6.5
- TI-2015-00723 The banner (aka MOTD) implementation in Cisco NX-OS 4.1(2)E1(1f) on Nexus 4000 devices… CVSS 2.0MEDIUM 5.0
- TI-2012-01191 The Fibre Channel over IP (FCIP) implementation in Cisco MDS NX-OS 4.2 and 5.2 on MDS… CVSS 2.0MEDIUM 5.0
Sources
- CVE-2015-4323 · CVE Program
- CVE-2015-4323 · NVD
- FIRST EPSS
- GHSA-f846-7hhm-3qxh · GitHub Advisory Database · CC BY 4.0
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