CVE-2026-16812

{"id": "CVE-2026-16812", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-16812", "role": "CISA Coordinator", "options": [{"exploitation": "active"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-07-27T00:00:00+00:00"}}], "cvssMetricV31": [{"type": "Secondary", "source": "psirt@arista.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 10.0, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "psirt@arista.com", "cvssData": {"Safety": "PRESENT", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 10.0, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "psirt@arista.com", "affectedData": [{"vendor": "Arista Networks", "product": "VeloCloud Orchestrator On-Prem", "versions": [{"status": "affected", "version": "5.2.0", "lessThan": "5.2.3.14", "versionType": "custom"}, {"status": "affected", "version": "6.1.0", "lessThan": "6.1.3.4", "versionType": "custom"}, {"status": "affected", "version": "6.4.0", "lessThan": "6.4.2.4", "versionType": "custom"}, {"status": "affected", "version": "7.0.0", "lessThan": "7.0.0.1", "versionType": "custom"}], "defaultStatus": "unaffected"}]}], "published": "2026-07-27T16:17:03.640", "references": [{"url": "https://www.arista.com/en/support/advisories-notices/security-advisory/24364-security-advisory-0144", "tags": ["Mitigation", "Vendor Advisory"], "source": "psirt@arista.com"}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-16812", "tags": ["US Government Resource"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "psirt@arista.com", "description": [{"lang": "en", "value": "CWE-78"}]}], "descriptions": [{"lang": "en", "value": "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.\n\n\n\n\nThis functionality was intended to be for internal use only and is not intended to be remotely accessible.\n\n\n\n\nHosted and Dedicated versions of VCO have already been patched in advance of this notice going out.\n\n\n\n\nThis issue was discovered externally and is known to be actively exploited."}, {"lang": "es", "value": "VeloCloud Orchestrator (VCO) local tiene un problema de seguridad donde este problema puede permitir a un atacante remoto acceder a funcionalidades internas privilegiadas e impactar al host de VCO. La explotaci\u00f3n exitosa puede comprometer la confidencialidad, integridad y disponibilidad del orquestador y los datos gestionados por el orquestador.\n\nEsta funcionalidad estaba destinada a ser solo para uso interno y no est\u00e1 destinada a ser accesible de forma remota.\n\nLas versiones Hosted y Dedicated de VCO ya han sido parcheadas antes de la publicaci\u00f3n de este aviso.\n\nEste problema fue descubierto externamente y se sabe que est\u00e1 siendo explotado activamente."}], "lastModified": "2026-10-24T13:10:00.147", "cisaActionDue": "2026-07-30", "cisaExploitAdd": "2026-07-27", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:arista:velocloud_orchestrator:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F93AF860-FDF1-4061-813C-364DA582B642", "versionEndExcluding": "5.2.3.14", "versionStartIncluding": "5.2.0"}, {"criteria": "cpe:2.3:a:arista:velocloud_orchestrator:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AD5222D5-45E4-43F9-852C-898D26F8FCDF", "versionEndExcluding": "6.1.3.4", "versionStartIncluding": "6.1.0"}, {"criteria": "cpe:2.3:a:arista:velocloud_orchestrator:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C099915D-2F35-4A87-8154-82985B5DA811", "versionEndExcluding": "6.4.2.4", "versionStartIncluding": "6.4.0"}, {"criteria": "cpe:2.3:a:arista:velocloud_orchestrator:7.0.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "40BC6B76-2FB0-4D62-9F46-B36A863BDCE9"}], "operator": "OR"}]}], "sourceIdentifier": "psirt@arista.com", "cisaRequiredAction": "Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA\u2019s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA\u2019s \u201cForensics Triage Requirements\u201d (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.", "cisaVulnerabilityName": "Arista VeloCloud Orchestrator On-Prem OS Command Injection Vulnerability"}