CVE-2025-5089

In a CVX cluster, an EOS switch connected to a CVX server is not resilient to certain malformed messages received from the connected CVX server. Similarly, the CVX server is not resilient to certain malformed messages received from the connected EOS switch. This leads to either a Sysdb agent crash on the EOS device causing a soft reset of the switch or agent crashes on the CVX server causing instability of 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 already have a high privilege access to the connected device to be able to send custom TCP packets. EOS switches that are not connected to a CVX server are not impacted.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

No configuration.

History

05 Jun 2026, 17:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-05 17:16

Updated : 2026-06-05 19:03

NVD link : CVE-2025-5089

Mitre link : CVE-2025-5089

CVE.ORG link : CVE-2025-5089

JSON object : View

Products Affected

No product.

CWE

CWE-20

Improper Input Validation

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