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CVE-2025-5090

Arista CloudVision Exchange Cluster Instability via Unexpected Switch Messages

Published: Jun 5, 2026Updated: Jun 5, 2026 Sources: CVE List NVDCWE-20
6.5MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 85.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

CVX is not resilient to unexpected messages from a connected switch. This leads to agent crashes on CVX causing instability in the CVX cluster. An attacker could use this behavior to create a denial of service (DoS) scenario. Note that this would require the attacker to have a high privilege access to the connected switch to be able to send custom TCP packets to the CVX.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-20

Affected Products

EOS / CloudVision eXchange (CVX)Arista Networks
On-premNetwork Device
Networking Infrastructure / network-management
arista networkscommercialUSNetworking Infrastructureaka arista networks

Exploitability

Official Patch Available
Workaround Available

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://www.arista.com/en/support/advisories-notices/security-advisory/22868-security-advisory-0126
arista.com

Timeline

Published
Jun 5, 2026
Last Updated
Jun 5, 2026

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