CVE entry · CVE-2026-16812
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.
- Actively exploited: added to CISA’s KEV catalog on July 27, 2026.
- Use by ransomware: not established so far.
- Remediation deadline for US federal agencies: July 30, 2026.
Description from CISA’s KEV catalog.
What to do
- Check whether your estate includes Arista VeloCloud Orchestrator, including internet-facing devices.
- Apply the vendor’s patch or mitigations (references below). Failing that, isolate the product or stop using it, as CISA requires of US federal agencies.
- An exploited vulnerability has often been used before it was fixed: look for signs of compromise, especially on internet-facing devices.