CVE-2026-121290

8.2 HIGH

Published 2026-11-10 · Updated 2026-11-10

AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.

NVD description

On affected platforms running Arista EOS with Border Gateway Protocol (BGP) changing the BGP listen port from its default value disables default protective Access Control List (ACL) rules against unexpected BGP peering attempts.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Weaknesses

CWE-420

All references

https://www.arista.com/en/support/advisories-notices/security-advisory/25031-security-advisory-0209

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

Related CVEs

MEDIUMCVE-2026-102134PoC
CRITICALCVE-2026-105008

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