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CVE-2026-16812

Arista VeloCloud Orchestrator•CRITICAL · CVSS 10• In the wild In CISA KEV

What is CVE-2026-16812?

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.

CVSS10 NVD 3.1

SeverityCRITICAL

Exploitation In the wild In CISA KEV

EPSS1% · P63

Triage statusActive Exploit

ActionPatch immediately

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CWECWE-78

NVD published2026-07-27

NVD last modified2026-10-24

Timeline

2026-07-27Published to the U.S. National Vulnerability Database (NVD)
2026-07-27Added to the CISA Known Exploited Vulnerabilities (KEV) catalog
2026-07-29First covered in a defend.network daily briefing
2026-07-30CISA federal remediation deadline (BOD 22-01)
2026-10-24NVD record last updated

CISA Known Exploited Vulnerability

Arista VeloCloud Orchestrator On-Prem OS Command Injection Vulnerability

Added to KEV2026-07-27

Federal patch deadline2026-07-30

Known ransomware useUnknown

Affected product

Arista VeloCloud Orchestrator

Remediation Steps

Apply the vendor security update for Arista Velocloud Orchestrator as a priority.
Restrict network exposure of the affected service to trusted sources until patched.
Review logs and detections for indicators of exploitation.
Confirm fixed versions against the official vendor advisory before deploying.

References

Referenced in our briefings & reports

Vulnerability Priority Report – Week 3 of October 2026 (October 19 – 25)
Vulnerability Priority Report – Week 4 of August 2026 (August 24 – 30)
Vulnerability Priority Report – Week 3 of August 2026 (August 17 – 23)
Vulnerability Priority Report – Week 2 of August 2026 (August 10 – 16)
Vulnerability Priority Report – Week 1 of August 2026 (August 3 – 9)
Vulnerability Priority Report – Week 4 of July 2026 (July 27 – August 2)
Arista VeloCloud zero-day exploited; Railway, Capcom breaches; LiteLLM supply chain attack (2026-10-23)
OpenAI exploits Artifactory zero-days; OpenWrt, vBulletin critical RCEs patched (2026-07-29)

Related vulnerabilities

CVE-2026-114625 – Arista VeloCloud Orchestrator (same product)
CVE-2026-93952 – Arista VeloCloud Orchestrator (same product)
CVE-2026-7473 – Arista Extensible Operating System (same vendor)
CVE-2026-106931 – EG Secure Solutions SiteGuard Server Edition (same weakness: CWE-78)
CVE-2026-110447 – Collabora Online – Built-In CODE Server (same weakness: CWE-78)
CVE-2026-83549 – SonicWall SMA1000 Appliances (same weakness: CWE-78)

Browse all tracked CVEs in the defend.network CVE database →

🤖 This CVE page is generated by defend.network from NVD, CISA KEV, EPSS, and our verified daily briefings. Severity and exploitation data come from official sources; always verify remediation steps against the official vendor advisory before acting in production.