CVE-2026-20033
7.4
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Summary
A vulnerability in Cisco Nexus 9000 Series Fabric Switches in ACI mode could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device.
This vulnerability is due to insufficient validation when processing specific Ethernet frames. An attacker could exploit this vulnerability by sending a crafted Ethernet frame to the management interface of an affected device. A successful exploit could allow the attacker to cause the device to reload unexpectedly, resulting in a DoS condition. Note: Only the out-of-band (OOB) management interface is affected.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.2(1g) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.2(2e) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.2(2f) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.2(2g) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.2(2h) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.2(3f) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.2(3e) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.2(3g) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.2(4d) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.2(4e) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.2(5c) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.2(5d) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 16.0(1g) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.2(5e) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.2(4f) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.2(6e) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.2(6h) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 16.0(1j) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.2(6g) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.2(7f) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.2(7g) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 16.0(2h) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.2(8d) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 16.0(2j) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.2(8e) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 16.0(3d) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 16.0(3e) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.2(8f) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.2(8g) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.3(1d) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.2(8h) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 16.0(4c) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.3(2a) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.2(8i) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 16.0(5h) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.3(2b) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 16.0(3g) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 16.0(5j) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.3(2c) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 16.0(6c) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.3(2d) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 16.1(1f) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 16.0(7e) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 16.0(8e) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.3(2e) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 16.0(8f) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 16.1(2f) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 16.1(2g) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 15.3(2f) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 16.0(9c) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 16.1(3f) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 16.0(9d) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 16.0(6h) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 16.0(8h) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 16.1(3g) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 16.0(9e) | affected |
| Cisco | Cisco NX-OS System Software in ACI Mode | 16.1(4h) | affected |
Weaknesses
- CWE-805: Buffer Access with Incorrect Length Value
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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