8.2

CVE-2026-2379

Arista EOS IPsec Tunnel Sequence Number Mismatch via Interface Flaps when Anti-Replay is Disabled

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerArista Networks
≫
Produkt EOS
Default Statusunaffected
Version <= 4.34.3M
Version 4.34.0
Status affected
Version <= 4.33.5M
Version 4.33.0M
Status affected
Version <= 4.32.7M
Version 4.32.0M
Status affected
Version <= 4.31.9M
Version 4.31.0M
Status affected
Version 4.30.0F
Version < 4.31.0
Status affected
Version 4.29.0F
Version < 4.30.0
Status affected
Version 4.28.0F
Version < 4.29.0
Status affected
Version 4.27.1F
Version < 4.28.0
Status affected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.23% 0.131
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
psirt@arista.com 8.2 0 0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
psirt@arista.com 5.9 2.2 3.6
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE-672 Operation on a Resource after Expiration or Release

The product uses, accesses, or otherwise operates on a resource after that resource has been expired, released, or revoked.

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