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Vulnerabilities

CVE-2026-120979 | BDVDB-2026-404476 Detail

Arista NetworksEOS

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.

Impact#

CAPEC-194 Fake the Source of Data

Weaknesses#

  • CWE-1289 Improper Validation of Unsafe Equivalence in Input

References#

Exploit#

No public exploit known

History#

  1. Version 1Record published in the CVE List.