Exploited vulnerability · CISA KEV

Is CVE-2026-16812 exploited? Yes: in CISA KEV since 27 Jul 2026

Gociux · Arista VeloCloud Orchestrator · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2026-16812, Arista VeloCloud Orchestrator On-Prem OS Command Injection Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 27 Jul 2026, the day it was published. It affects Arista VeloCloud Orchestrator. If you run it, CISA's required action is: 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.

What it is

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.

What to do

1. Check whether you run it. Look for VeloCloud Orchestrator in your asset inventory, including appliances and cloud images. Stack check lists every exploited Arista CVE at once.
2. Apply the fix. 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.
3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 27 Jul 2026.
4. Get told next time. Email alerts when CISA adds a CVE for Arista.

Other exploited CVEs in VeloCloud Orchestrator

• CVE-2026-114625: Arista VeloCloud Orchestrator SQL Injection Vulnerability (23 Oct 2026)
• CVE-2026-93952: Arista VeloCloud Orchestrator Improper Input Validation Vulnerability (22 Sep 2026)

References

• www.arista.com/en/support/advisories-notices/security-advisory/24364-secur
• nvd.nist.gov/vuln/detail/CVE-2026-16812

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in July 2026 · Arista scorecard · act-now radar.