5.8

CVE-2026-20173

Cisco NX-OS Software Denial of Service Vulnerability

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerCisco
≫
Produkt Cisco NX-OS Software
Default Statusunknown
Version 8.2(5)
Status affected
Version 7.3(5)D1(1)
Status affected
Version 8.4(2)
Status affected
Version 8.4(3)
Status affected
Version 9.2(3)
Status affected
Version 9.2(2v)
Status affected
Version 7.3(4)D1(1)
Status affected
Version 8.2(1)
Status affected
Version 9.2(1)
Status affected
Version 9.2(2t)
Status affected
Version 9.2(3y)
Status affected
Version 9.3(2)
Status affected
Version 8.1(1)
Status affected
Version 8.2(2)
Status affected
Version 8.3(2)
Status affected
Version 7.3(2)D1(3a)
Status affected
Version 9.2(4)
Status affected
Version 8.1(2)
Status affected
Version 7.3(3)D1(1)
Status affected
Version 8.2(3)
Status affected
Version 8.4(1)
Status affected
Version 7.3(0)DX(1)
Status affected
Version 7.3(2)D1(1)
Status affected
Version 9.3(1)
Status affected
Version 7.3(2)D1(2)
Status affected
Version 8.2(4)
Status affected
Version 9.3(1z)
Status affected
Version 9.2(2)
Status affected
Version 8.1(2a)
Status affected
Version 7.3(2)D1(3)
Status affected
Version 8.3(1)
Status affected
Version 7.3(1)D1(1)
Status affected
Version 7.3(0)D1(1)
Status affected
Version 9.3(3)
Status affected
Version 7.3(2)D1(1d)
Status affected
Version 9.3(4)
Status affected
Version 7.3(6)D1(1)
Status affected
Version 8.2(6)
Status affected
Version 9.3(5)
Status affected
Version 9.3(6)
Status affected
Version 8.4(4)
Status affected
Version 7.3(7)D1(1)
Status affected
Version 9.3(5w)
Status affected
Version 8.2(7)
Status affected
Version 9.3(7)
Status affected
Version 9.3(7k)
Status affected
Version 7.3(8)D1(1)
Status affected
Version 9.3(7a)
Status affected
Version 8.2(7a)
Status affected
Version 9.3(8)
Status affected
Version 8.4(4a)
Status affected
Version 8.4(5)
Status affected
Version 8.2(8)
Status affected
Version 9.3(9)
Status affected
Version 7.3(9)D1(1)
Status affected
Version 8.4(6)
Status affected
Version 9.3(10)
Status affected
Version 8.2(9)
Status affected
Version 10.3(1)
Status affected
Version 8.4(7)
Status affected
Version 10.3(2)
Status affected
Version 8.4(6a)
Status affected
Version 9.3(11)
Status affected
Version 10.3(3)
Status affected
Version 8.2(10)
Status affected
Version 9.3(12)
Status affected
Version 10.4(1)
Status affected
Version 8.4(8)
Status affected
Version 10.3(99w)
Status affected
Version 10.3(3w)
Status affected
Version 10.3(99x)
Status affected
Version 10.3(3o)
Status affected
Version 8.4(9)
Status affected
Version 10.3(4)
Status affected
Version 10.3(3p)
Status affected
Version 10.3(4a)
Status affected
Version 10.4(2)
Status affected
Version 10.3(3q)
Status affected
Version 9.3(13)
Status affected
Version 8.2(11)
Status affected
Version 10.3(5)
Status affected
Version 10.4(3)
Status affected
Version 10.3(3x)
Status affected
Version 10.3(4g)
Status affected
Version 10.5(1)
Status affected
Version 8.4(10)
Status affected
Version 10.3(3r)
Status affected
Version 10.3(6)
Status affected
Version 9.3(14)
Status affected
Version 10.4(4)
Status affected
Version 10.3(4h)
Status affected
Version 10.5(2)
Status affected
Version 8.4(11)
Status affected
Version 10.3(7)
Status affected
Version 10.4(5)
Status affected
Version 10.5(3)
Status affected
Version 9.3(15)
Status affected
Version 10.4(4g)
Status affected
Version 10.5(4)
Status affected
Version 8.4(12)
Status affected
Version 10.5(3t)
Status affected
Version 10.3(8)
Status affected
Version 10.4(6)
Status affected
Version 10.5(3s)
Status affected
Version 10.5(3e)
Status affected
Version 10.5(3o)
Status affected
Version 9.3(16)
Status affected
Version 10.5(3p)
Status affected
Version 10.4(7)
Status affected
Version 10.5(5)
Status affected
Version 9.3(17)
Status affected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Cisco PSIRT 5.8 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
CWE-770 Allocation of Resources Without Limits or Throttling

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-nscpdos-SnderkC7