// For flags

CVE-2024-20321

 

Severity Score

8.6
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

A vulnerability in the External Border Gateway Protocol (eBGP) implementation of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
This vulnerability exists because eBGP traffic is mapped to a shared hardware rate-limiter queue. An attacker could exploit this vulnerability by sending large amounts of network traffic with certain characteristics through an affected device. A successful exploit could allow the attacker to cause eBGP neighbor sessions to be dropped, leading to a DoS condition in the network.

Una vulnerabilidad en la implementación del protocolo de puerta de enlace de frontera externa (eBGP) del software Cisco NX-OS podría permitir que un atacante remoto no autenticado cause una condición de denegación de servicio (DoS) en un dispositivo afectado. Esta vulnerabilidad existe porque el tráfico eBGP está asignado a una cola limitadora de velocidad de hardware compartida. Un atacante podría aprovechar esta vulnerabilidad enviando grandes cantidades de tráfico de red con determinadas características a través de un dispositivo afectado. Un exploit exitoso podría permitir al atacante provocar la caída de las sesiones vecinas de eBGP, lo que provocaría una condición DoS en la red.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
None
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-11-08 CVE Reserved
  • 2024-02-28 CVE Published
  • 2024-03-05 EPSS Updated
  • 2024-08-16 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-400: Uncontrolled Resource Consumption
  • CWE-770: Allocation of Resources Without Limits or Throttling
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
7.0\(3\)f1\(1\)
Search vendor "Cisco" for product "Nx-os" and version "7.0\(3\)f1\(1\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
7.0\(3\)f2\(1\)
Search vendor "Cisco" for product "Nx-os" and version "7.0\(3\)f2\(1\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
7.0\(3\)f2\(2\)
Search vendor "Cisco" for product "Nx-os" and version "7.0\(3\)f2\(2\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
7.0\(3\)f3\(1\)
Search vendor "Cisco" for product "Nx-os" and version "7.0\(3\)f3\(1\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
7.0\(3\)f3\(2\)
Search vendor "Cisco" for product "Nx-os" and version "7.0\(3\)f3\(2\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
7.0\(3\)f3\(3\)
Search vendor "Cisco" for product "Nx-os" and version "7.0\(3\)f3\(3\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
7.0\(3\)f3\(3a\)
Search vendor "Cisco" for product "Nx-os" and version "7.0\(3\)f3\(3a\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
7.0\(3\)f3\(3c\)
Search vendor "Cisco" for product "Nx-os" and version "7.0\(3\)f3\(3c\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
7.0\(3\)f3\(4\)
Search vendor "Cisco" for product "Nx-os" and version "7.0\(3\)f3\(4\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
7.0\(3\)f3\(5\)
Search vendor "Cisco" for product "Nx-os" and version "7.0\(3\)f3\(5\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
9.2\(1\)
Search vendor "Cisco" for product "Nx-os" and version "9.2\(1\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
9.2\(2\)
Search vendor "Cisco" for product "Nx-os" and version "9.2\(2\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
9.2\(2t\)
Search vendor "Cisco" for product "Nx-os" and version "9.2\(2t\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
9.2\(2v\)
Search vendor "Cisco" for product "Nx-os" and version "9.2\(2v\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
9.2\(3\)
Search vendor "Cisco" for product "Nx-os" and version "9.2\(3\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
9.2\(4\)
Search vendor "Cisco" for product "Nx-os" and version "9.2\(4\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
9.3\(1\)
Search vendor "Cisco" for product "Nx-os" and version "9.3\(1\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
9.3\(2\)
Search vendor "Cisco" for product "Nx-os" and version "9.3\(2\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
9.3\(3\)
Search vendor "Cisco" for product "Nx-os" and version "9.3\(3\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
9.3\(4\)
Search vendor "Cisco" for product "Nx-os" and version "9.3\(4\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
9.3\(5\)
Search vendor "Cisco" for product "Nx-os" and version "9.3\(5\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
9.3\(6\)
Search vendor "Cisco" for product "Nx-os" and version "9.3\(6\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
9.3\(7\)
Search vendor "Cisco" for product "Nx-os" and version "9.3\(7\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
9.3\(7a\)
Search vendor "Cisco" for product "Nx-os" and version "9.3\(7a\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
9.3\(8\)
Search vendor "Cisco" for product "Nx-os" and version "9.3\(8\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
9.3\(9\)
Search vendor "Cisco" for product "Nx-os" and version "9.3\(9\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
9.3\(10\)
Search vendor "Cisco" for product "Nx-os" and version "9.3\(10\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
9.3\(11\)
Search vendor "Cisco" for product "Nx-os" and version "9.3\(11\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
9.3\(12\)
Search vendor "Cisco" for product "Nx-os" and version "9.3\(12\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
10.1\(1\)
Search vendor "Cisco" for product "Nx-os" and version "10.1\(1\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
10.1\(2\)
Search vendor "Cisco" for product "Nx-os" and version "10.1\(2\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
10.1\(2t\)
Search vendor "Cisco" for product "Nx-os" and version "10.1\(2t\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
10.2\(1\)
Search vendor "Cisco" for product "Nx-os" and version "10.2\(1\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
10.2\(1q\)
Search vendor "Cisco" for product "Nx-os" and version "10.2\(1q\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
10.2\(2\)
Search vendor "Cisco" for product "Nx-os" and version "10.2\(2\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
10.2\(3\)
Search vendor "Cisco" for product "Nx-os" and version "10.2\(3\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
10.2\(3t\)
Search vendor "Cisco" for product "Nx-os" and version "10.2\(3t\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
10.2\(3v\)
Search vendor "Cisco" for product "Nx-os" and version "10.2\(3v\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
10.2\(4\)
Search vendor "Cisco" for product "Nx-os" and version "10.2\(4\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
10.2\(5\)
Search vendor "Cisco" for product "Nx-os" and version "10.2\(5\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
10.2\(6\)
Search vendor "Cisco" for product "Nx-os" and version "10.2\(6\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
10.3\(1\)
Search vendor "Cisco" for product "Nx-os" and version "10.3\(1\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
10.3\(2\)
Search vendor "Cisco" for product "Nx-os" and version "10.3\(2\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
10.3\(3\)
Search vendor "Cisco" for product "Nx-os" and version "10.3\(3\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
10.3\(4a\)
Search vendor "Cisco" for product "Nx-os" and version "10.3\(4a\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
10.3\(99w\)
Search vendor "Cisco" for product "Nx-os" and version "10.3\(99w\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
10.3\(99x\)
Search vendor "Cisco" for product "Nx-os" and version "10.3\(99x\)"
-
Affected
Cisco
Search vendor "Cisco"
Nx-os
Search vendor "Cisco" for product "Nx-os"
10.4\(1\)
Search vendor "Cisco" for product "Nx-os" and version "10.4\(1\)"
-
Affected