CVE-2026-2379
HIGH EPSS 13.2%
Published Jun 5, 20263w ago · Modified Jun 17, 20262w ago
8.2 CVSS 4.0
Published Jun 5, 2026 3w ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
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 Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
13.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-672
References 1
- arista.com https://www.arista.com/en/support/advisories-notices/security-advisory/23419-security-advisory-0134
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.