CyberCVE

CVE-2024-20321

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

Severity
High 8.6
CVSS 3.1
Exploited
Not listed
EPSS
0.007
52.1th percentile
Discovered by
Vendor
Vendor-published field
Published
Feb 28, 2024
Assigned by cisco

Description

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.

Weakness: CWE-400

Affected products

Vendor Product Category Matched by
Cisco Cisco NX-OS Software Routing & Switching cna-assigner
Vendor-reported products (2)
  • Cisco · Cisco NX-OS Software
  • cisco · nx-os

References

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