CVE-2026-16812

VeloCloud Orchestrator (VCO) on-prem has a security issue where this issue may allow a remote attacker to access privileged internal functionality and impact the VCO host. Successful exploitation may compromise the confidentiality, integrity, and availability of the orchestrator and data managed by the orchestrator. This functionality was intended to be for internal use only and is not intended to be remotely accessible. Hosted and Dedicated versions of VCO have already been patched in advance of this notice going out. This issue was discovered externally and is known to be actively exploited.

CVSS v3 10.0 CRITICAL

10.0^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://www.arista.com/en/support/advisories-notices/security-advisory/24364-security-advisory-0144	Mitigation Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-16812	US Government Resource

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:arista:velocloud_orchestrator::::::::
	cpe:2.3:a:arista:velocloud_orchestrator::::::::
	cpe:2.3:a:arista:velocloud_orchestrator::::::::
	cpe:2.3:a:arista:velocloud_orchestrator:7.0.0:::::::*

History

No history.

Information

Published : 2026-07-27 16:17

Updated : 2026-07-28 14:50

NVD link : CVE-2026-16812

Mitre link : CVE-2026-16812

CVE.ORG link : CVE-2026-16812

JSON object : View

Products Affected

arista

velocloud_orchestrator

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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Successful exploitation may compromise the confidentiality, integrity, and availability of the orchestrator and data managed by the orchestrator.\n\n\n\n\nThis functionality was intended to be for internal use only and is not intended to be remotely accessible.\n\n\n\n\nHosted and Dedicated versions of VCO have already been patched in advance of this notice going out.\n\n\n\n\nThis issue was discovered externally and is known to be actively exploited."}], "lastModified": "2026-07-28T14:50:33.960", "cisaActionDue": "2026-07-30", "cisaExploitAdd": "2026-07-27", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:arista:velocloud_orchestrator:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F93AF860-FDF1-4061-813C-364DA582B642", "versionEndExcluding": "5.2.3.14", "versionStartIncluding": "5.2.0"}, {"criteria": "cpe:2.3:a:arista:velocloud_orchestrator:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AD5222D5-45E4-43F9-852C-898D26F8FCDF", "versionEndExcluding": "6.1.3.4", "versionStartIncluding": "6.1.0"}, {"criteria": "cpe:2.3:a:arista:velocloud_orchestrator:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C099915D-2F35-4A87-8154-82985B5DA811", "versionEndExcluding": "6.4.2.4", "versionStartIncluding": "6.4.0"}, {"criteria": "cpe:2.3:a:arista:velocloud_orchestrator:7.0.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "40BC6B76-2FB0-4D62-9F46-B36A863BDCE9"}], "operator": "OR"}]}], "sourceIdentifier": "psirt@arista.com", "cisaRequiredAction": "Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA\u2019s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA\u2019s \u201cForensics Triage Requirements\u201d (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.", "cisaVulnerabilityName": "Arista VeloCloud Orchestrator On-Prem OS Command Injection Vulnerability"}