CVE-2026-16812

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. Source description excerpt; complete tracked detail loads below.

NVD published: Jul 27, 2026 · Source record updated: Aug 8, 2026 · Tracker snapshot: Aug 8, 2026

Arista — VeloCloud Orchestrator. Product-level identification only; no affected-version conclusion is available from this field.

NVD published: Jul 27, 2026 · Source record updated: Aug 8, 2026 · Tracker snapshot: Aug 8, 2026

Act · 461.4

Tracker decision tier from the evidence detailed below · Source record updated: Aug 8, 2026 · Tracker snapshot: Aug 8, 2026

Active exploitation · CISA KEV · VulnCheck KEV · ENISA exploited-vulnerability catalog

Active since: Jul 27, 2026 · CISA KEV added: Jul 27, 2026 · VulnCheck KEV added: Jul 27, 2026 · ENISA added: Jul 27, 2026 · Source record updated: Aug 8, 2026 · Tracker snapshot: Aug 8, 2026

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.

Tracked source remediation field · Source record updated: Aug 8, 2026 · Tracker snapshot: Aug 8, 2026