CVE-2026-2379
MEDIUM
NVD
CVSS Score
5.9
Severity
MEDIUM
Published
Jun 05, 2026
Vendor
unknown
Description
On affected platforms with hardware IPSec support running Arista EOS with certain IPsec features enabled, EOS may exhibit unexpected behavior in specific cases. Physical interface flaps and certain agent restarts can cause IPsec tunnel re-establishment with existing Security Associations, resulting in sequence number mismatches between tunnel endpoints potentially causing unstable communication.