CVE-2026-2379

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.

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://www.arista.com/en/support/advisories-notices/security-advisory/23419-security-advisory-0134

Configurations

No configuration.

History

05 Jun 2026, 18:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-05 18:17

Updated : 2026-06-05 19:03

NVD link : CVE-2026-2379

Mitre link : CVE-2026-2379

CVE.ORG link : CVE-2026-2379

JSON object : View

Products Affected

No product.

CWE

CWE-672

Operation on a Resource after Expiration or Release

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