VULNERABILITY INTELLIGENCE
CVE-2026-2379
CVSS score5.9 MEDIUM
EPSS probability0.23%
CISA KEVNot currently listed
Published2026-06-05
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
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.
Weakness classification
- psirt@arista.com: CWE-672