CVE-2025-7048 MEDIUM

CVE-2025-7048: On affected platforms running Arista EOS with MACsec configuration, a specially crafted packet can cause the MACsec process to terminate unexpectedly. Continuous receipt of these packets with certain MACsec configurations can cause longer term disruption o

Vendor Arista Networks
Product EOS
Weakness CWE-805
Published January 6, 2026
Last update January 6, 2026
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

What the vulnerability does

01Description

On affected platforms running Arista EOS with MACsec configuration, a specially crafted packet can cause the MACsec process to terminate unexpectedly. Continuous receipt of these packets with certain MACsec configurations can cause longer term disruption of dataplane traffic.

Key dates

02Disclosure timeline

January 6, 2026 CVE published
January 6, 2026 Record updated