Software Update Workflow Vulnerability in VeloCloud by Arista Networks
CVE-2026-86109

7.5HIGH

Key Information:

Vendor

Arista Networks

Status
Velocloud Edge
Vendor
CVE Published:
16 September 2026

What is CVE-2026-86109?

The VeloCloud Edge software features an update process that may inadvertently accept update bundles lacking proper signature validation. This oversight results from the absence of restrictions on the digest algorithm utilized during artifact verification. An attacker possessing sufficient permissions to upload packages to the VeloCloud Orchestrator or having direct access credentials to an Edge device may exploit this vulnerability, potentially leading to the installation of unauthorized software.

Affected Version(s)

VeloCloud Edge 6.4.0 <= 6.4.1.x

VeloCloud Edge 6.1.0 <= 6.1.4.x

VeloCloud Edge 5.2.0 <= 5.2.6.x

References

https://www.arista.com/zh/support/advisories-notices/secu...
vendor-advisory

CVSS V4

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

This issue was discovered internally by Arista. Arista is not aware of any malicious exploitation of this vulnerability in customer networks.
.