MSRXCVE-2026-16812
CVE-2026-16812
Arista VeloCloud Orchestrator On-Prem OS Command Injection Vulnerability
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.
CVSS 4.0 · CNA · arista.com
chance of exploitation in the next 30 days (EPSS; higher than 77% of CVEs)
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.
Scores
Affected products
- arista velocloud orchestrator: ≥ 5.2.0, < 5.2.3.14; ≥ 6.1.0, < 6.1.3.4; ≥ 6.4.0, < 6.4.2.4; 7.0.0
Weakness: CWE-78
2 references (advisories, patches, write-ups)
- https://www.arista.com/en/support/advisories-notices/security-advisory/24364-security-advisory-0144 · Mitigation, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-16812 · US Government Resource
Sources: NVD, CVE.org, FIRST EPSS. Missing ones did not answer or have no record yet.