8.6
High
CVE-2024-20321 A vulnerability in the External Border Gateway Protocol (eBGP) implementation of Cisco NX-OS Software could allow an…
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Cisco NX-OS Software | Versions not published | |
| nx-os | Versions not published |
References
- cisco-sa-nxos-ebgp-dos-L3QCwVJ sec.cloudapps.cisco.com
Timeline
- Published
- Last modified
Other CVEs of Cisco NX-OS Software
The 102 CVEs of Cisco NX-OS Software →
CVE-2026-76501
A vulnerability in the Segment Routing over IPv6 (SRv6) Operation, Administration, and Maintenance (OAM) feature of…
9.8
Critical
CVE-2026-76486
A vulnerability in the VXLAN Operation, Administration, and Maintenance (OAM) feature of Cisco NX-OS Software, known…
9.8
Critical
CVE-2026-76485
A vulnerability in the VXLAN Operation, Administration, and Maintenance (OAM) feature of Cisco NX-OS Software, known…
9.8
Critical
CVE-2026-76458
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco NX-OS engineering team has…
8.6
High