Live › vulnerability › CVE-2026-16812
Go to dashboardUnauthenticated OS command injection (CWE-78, CVSS 10.0) in on-prem Arista VeloCloud Orchestrator. A remote attacker with network access to the VCO web interface reaches internal-only functionality and can run commands on the VCO host. No credentials needed. VCO is exposed by default and no setting prevents it. Actively exploited, in CISA KEV since 2026-07-27. Hosted and Dedicated VCO are being patched by Arista. A compromised VCO may give attackers access to managed Edge devices.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 5h before NVD. All times on this page are UTC.
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (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.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| VeloCloud Orchestrator On-Prem | vendor | >= 5.2.0, < 5.2.3.14; >= 6.1.0, < 6.1.3.4; >= 6.4.0, < 6.4.2.4; >= 7.0.0, < 7.0.0.1 | 5.2.3.14, 6.1.3.4, 6.4.2.4, 7.0.0.1 |
| arista velocloud orchestrator | vendor | >= 5.2.0, < 5.2.3.14 | 5.2.3.14 |
| arista velocloud orchestrator | vendor | >= 6.1.0, < 6.1.3.4 | 6.1.3.4 |
| arista velocloud orchestrator |
| vendor |
| >= 6.4.0, < 6.4.2.4 |
| 6.4.2.4 |
| arista velocloud orchestrator | vendor | = 7.0.0 | – |
| Arista VeloCloud Orchestrator | vendor | – | – |
5.2.3.14, 6.1.x before 6.1.3.4, 6.4.x before 6.4.2.4, 7.0.x before 7.0.0.1 (end-of-support releases not assessed). 2) Review VCO web access logs for unusual URL-like path components, encoded characters, references to local/internal services, high request rates. 3) Look for requests from 8.19.75.217, 206.72.242.124, 206.72.242.162; unexpected outbound HTTP(S) from the VCO host; unexpected command execution, file creation, DB export or archives; config changes not matching admin activity.5.2.3.14+, 6.1.3.4+ or 6.4.2.4+ in the same train. 7.0 fixed build not listed in SA 0144 (7.0.0.1 is the first non-affected)Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
Posts are quoted with a link to the original. They are data to us, never instructions.
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.
CISA required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (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.
This page as .md · .json · in your agent: get_signal("CVE-2026-16812")
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