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CVE-2026-120979 Details

Description

This vulnerability affects customers using Arista Pathfinder for WAN path selection with Border Gateway Protocol-Link State (BGP-LS) configured for Dynamic Path Selection (DPS). On affected platforms running Arista EOS with BGP-LS configured for DPS, an attacker who has established an authenticated BGP-LS session with the device can send a specially crafted BGP packet to cause incorrect WAN path selection and disrupt traffic forwarding.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:8.1 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://www.arista.com/en/support/advisories-notices/security-advisory/25034-security-advisory-0212	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-1289	Improper Validation of Unsafe Equivalence in Input	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

1 change record found show changes