CVE-2026-16812: Arista VeloCloud Orchestrator On-Prem OS Command Injection Vulnerability
Arista VeloCloud Orchestrator On-Prem contains an OS command injection vulnerability that 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.
Other sources
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.
— MITRE
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 5.2.3.14 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.1.3.4 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.4.2.4 - Compensating control
Ensure the VeloCloud Orchestrator on-prem OS command injection functionality is not remotely accessible; evaluate each asset's internet exposure and restrict remote access per BOD 26-04 guidance if applicable mitigations are needed.
Event History
Frequently Asked Questions
What is the severity of CVE-2026-16812?
The severity of CVE-2026-16812 is rated as critical with a score of 10.
How do I fix CVE-2026-16812?
To fix CVE-2026-16812, it is recommended to update the VeloCloud Orchestrator to the latest patched version provided by the vendor.
What type of vulnerability is CVE-2026-16812?
CVE-2026-16812 is classified as an OS Command Injection vulnerability.
What impact does CVE-2026-16812 have on VeloCloud Orchestrator?
CVE-2026-16812 can compromise the confidentiality, integrity, and availability of the VeloCloud Orchestrator and its managed data.
Can CVE-2026-16812 be exploited remotely?
Yes, CVE-2026-16812 allows for remote exploitation due to the nature of the OS Command Injection vulnerability.