Critical 10.0
KEV-listed
CVE-2026-16812
Volt Typhoon Zero-Day Exploitation of VeloCloudOrchestrator and Management Systems
Vendor / product: VeloCloudOrchestrator
Event date: 2026-07-27
Public PoC: Yes
First tracked by RiskWire: 2026-11-04
CISA KEV catalog
Added to KEV
Federal remediation due
2026-07-30 (97 days overdue)
Ransomware campaign use
Unknown
CISA description
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.
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.
Named threat actors
Volt Typhoon
Sources & citations (1)
- Volt Typhoon 鎖定高價值系統 利用零時差漏洞入侵管理平台 netmag.tw · 2026-11-03
References
See CVE-2026-16812 in context
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