Research · Sep 22, 2026 · ZeroDay Catalog
Arista VeloCloud Orchestrator Faces Input Validation Vulnerability
A security vulnerability in Arista's VeloCloud Orchestrator could allow remote attackers to exploit internal functionalities, threatening data integrity and availability.
What changed
Arista Networks has identified an improper input validation vulnerability in the VeloCloud Orchestrator (VCO) that could be exploited by remote attackers. This vulnerability may lead to unauthorized access to privileged internal functionalities, potentially compromising the orchestrator and the data it manages.
The issue affects on-premises versions of VCO, including hosted and dedicated deployments, but has been addressed with patches from the vendor.
Who is affected
Organizations utilizing Arista's VeloCloud Orchestrator are at risk due to this vulnerability. The following groups should pay particular attention:
Users of the on-premises version of VeloCloud Orchestrator need to ensure they apply the latest security patches.
- Arista Networks customers using VeloCloud Orchestrator.
- Enterprises relying on VCO for network orchestration.
- Organizations with dedicated or hosted VCO deployments.
What to do
It is crucial for affected users to take immediate action to mitigate potential risks associated with this vulnerability. Ensure that all relevant patches are applied to the VeloCloud Orchestrator.
Regularly review security protocols and access controls to safeguard against unauthorized access.
- Apply the latest patches provided by Arista Networks.
- Conduct a security audit of the VCO deployment.
- Monitor for any unusual activity within the orchestrator.