Description
A vulnerability in Cisco NX-OS Software could allow an unauthenticated, remote attacker to exhaust system resources, causing a denial of service (DoS) condition.
This vulnerability exists because rate limiting was improperly applied to some protocols. An attacker could exploit this vulnerability by sending a high rate of UDP or TCP connections to a data plane interface on an affected device. A successful exploit could allow the attacker to cause instability to various routing and control plane protocols through some packet loss and temporary disruptions, causing a DoS condition. This DoS condition will clear without manual intervention soon after the high rate of traffic is stopped.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Cisco | Cisco NX-OS Software | 8.2(5), 7.3(5)D1(1), 8.4(2), 8.4(3), 9.2(3), 9.2(2v), 7.3(4)D1(1), 8.2(1), 9.2(1), 9.2(2t), 9.2(3y), 9.3(2), 8.1(1), 8.2(2), 8.3(2), 7.3(2)D1(3a), 9.2(4), 8.1(2), 7.3(3)D1(1), 8.2(3), 8.4(1), 7.3(0)DX(1), 7.3(2)D1(1), 9.3(1), 7.3(2)D1(2), 8.2(4), 9.3(1z), 9.2(2), 8.1(2a), 7.3(2)D1(3), 8.3(1), 7.3(1… | — |
Advisories 2
- NCSC-2026-0406 Kwetsbaarheden verholpen in Cisco NX-OS Software NCSC-NL (Netherlands) · Oct 8, 2026
- WID-SEC-2026-3810 Cisco Nexus und Cisco NX-OS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 7, 2026