CVE-2026-93952

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-93952", "assignerOrgId": "c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7", "state": "PUBLISHED", "assignerShortName": "Arista", "dateReserved": "2026-09-19T01:37:47.225Z", "datePublished": "2026-09-22T07:37:24.300Z", "dateUpdated": "2026-09-23T03:55:40.823Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7", "shortName": "Arista", "dateUpdated": "2026-09-22T07:37:24.300Z"}, "title": "Security Advisory 0183", "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\nHosted, including Dedicated, versions of VCO were impacted and have already been patched.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>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.</p><p>Hosted, including Dedicated, versions of VCO were impacted and have already been patched.</p>"}]}], "affected": [{"vendor": "Arista Networks", "product": "VeloCloud Orchestrator (VCO) On-Prem", "platforms": ["VeloCloud Orchestrator On-Prem"], "defaultStatus": "unaffected", "versions": [{"version": "5.2.0", "lessThanOrEqual": "5.2.3.15", "status": "affected", "versionType": "custom"}, {"version": "6.1.0", "lessThanOrEqual": "6.1.3.7", "status": "affected", "versionType": "custom"}, {"version": "6.4.0", "lessThanOrEqual": "6.4.2.7", "status": "affected", "versionType": "custom"}, {"version": "7.0.0", "lessThanOrEqual": "7.0.0.2", "status": "affected", "versionType": "custom"}]}], "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-20", "lang": "en", "description": "CWE-20 Improper Input Validation"}]}], "impacts": [{"capecId": "CAPEC-115", "descriptions": [{"lang": "en", "value": "CAPEC-115 Authentication Bypass"}]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "baseScore": 10, "baseSeverity": "CRITICAL"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H", "baseScore": 9.5, "baseSeverity": "CRITICAL"}}], "configurations": [{"lang": "en", "value": "VCO is exposed if certificate based authentication from the VeloCloud Edge to VeloCloud Orchestrator (VCO) is configured. Access to the public portion of the VeloCloud Edge authentication certificate is required. A successful attack requires network access to the VCO web interface. VCO tenant or operator credentials are not required for this exposure.\n\nDeployments that restrict VCO web interface access to trusted administrative networks can reduce risk of exposure."}], "workarounds": [{"lang": "en", "value": "Until fixed software is deployed, operators should apply defense-in-depth controls appropriate for their environment:\n- Restrict access to the VCO web interface to trusted administrative networks.\n- Monitor the VCO for accesses from known malicious source IPs.\n- Monitor for unexpected outbound network activity from the VCO host.\n- Consider blocking outbound ports not needed for normal activities.\n- Monitor for backdoor daemons and webshells.\n- Review recent administrator activity for unexpected changes."}], "solutions": [{"lang": "en", "value": "The recommended resolution is to upgrade to a remediated VCO software version at your earliest convenience. These vulnerabilities have been fixed in the following releases:\n- VCO 5.2.3.16 and later in the 5.2.3 train\n- VCO 6.4.2.8 and later in the 6.4.2 train\n\nReleases in other release trains that fix this will be added over time. For VCOs not on a supported release train, customers can contact TAC to discuss possible upgrade options."}], "references": [{"url": "https://www.arista.com/en/support/advisories-notices/security-advisory/24765-security-advisory-0183", "name": "Security Advisory 0183", "tags": ["vendor-advisory"]}], "source": {"advisory": "Security Advisory 0183", "defect": ["BUG1907167", "BUG1937417"], "discovery": "EXTERNAL"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-22T00:00:00+00:00", "options": [{"Exploitation": "active"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-93952"}}}, {"other": {"type": "kev", "content": {"dateAdded": "2026-09-22", "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-93952"}}}], "references": [{"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-93952", "tags": ["government-resource"]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-23T03:55:40.823Z"}, "timeline": [{"time": "2026-09-22T00:00:00.000Z", "lang": "en", "value": "CVE-2026-93952 added to CISA KEV"}]}]}}

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These vulnerabilities have been fixed in the following releases:\n- VCO 5.2.3.16 and later in the 5.2.3 train\n- VCO 6.4.2.8 and later in the 6.4.2 train\n\nReleases in other release trains that fix this will be added over time. For VCOs not on a supported release train, customers can contact TAC to discuss possible upgrade options."}], "references": [{"url": "https://www.arista.com/en/support/advisories-notices/security-advisory/24765-security-advisory-0183", "name": "Security Advisory 0183", "tags": ["vendor-advisory"]}], "workarounds": [{"lang": "en", "value": "Until fixed software is deployed, operators should apply defense-in-depth controls appropriate for their environment:\n- Restrict access to the VCO web interface to trusted administrative networks.\n- Monitor the VCO for accesses from known malicious source IPs.\n- Monitor for unexpected outbound network activity from the VCO host.\n- Consider blocking outbound ports not needed for normal activities.\n- Monitor for backdoor daemons and webshells.\n- Review recent administrator activity for unexpected changes."}], "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. 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VCO tenant or operator credentials are not required for this exposure.\n\nDeployments that restrict VCO web interface access to trusted administrative networks can reduce risk of exposure."}], "providerMetadata": {"orgId": "c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7", "shortName": "Arista", "dateUpdated": "2026-09-22T07:37:24.300Z"}}}, "cveMetadata": {"cveId": "CVE-2026-93952", "state": "PUBLISHED", "dateUpdated": "2026-09-23T03:55:40.823Z", "dateReserved": "2026-09-19T01:37:47.225Z", "assignerOrgId": "c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7", "datePublished": "2026-09-22T07:37:24.300Z", "assignerShortName": "Arista"}, "dataVersion": "5.2"}

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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 Improper Input Validation Vulnerability", "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:arista:velocloud_orchestrator:*:*:*:*:*:*:*:*", "matchCriteriaId": "E90ACBD1-E408-4DD5-B8DC-D3E021FC7E7A", "versionEndExcluding": "5.2.3.16", "versionStartIncluding": "5.2.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:arista:velocloud_orchestrator:*:*:*:*:*:*:*:*", "matchCriteriaId": "86BE5508-B49D-42FC-82E7-FCA23806DF8D", "versionEndIncluding": "6.1.3.7", "versionStartIncluding": "6.1.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:arista:velocloud_orchestrator:*:*:*:*:*:*:*:*", "matchCriteriaId": "9592E38C-B71C-499C-9B7E-317E8E20794C", "versionEndExcluding": "6.4.2.8", "versionStartIncluding": "6.4.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:arista:velocloud_orchestrator:*:*:*:*:*:*:*:*", "matchCriteriaId": "633BE61D-90FD-4868-9459-D4DB1B2CF653", "versionEndIncluding": "7.0.0.2", "versionStartIncluding": "7.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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\nHosted, including Dedicated, versions of VCO were impacted and have already been patched."}], "id": "CVE-2026-93952", "lastModified": "2026-09-23T14:32:12.417", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 10.0, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 6.0, "source": "psirt@arista.com", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 9.5, "baseSeverity": "CRITICAL", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:H/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:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "psirt@arista.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-93952", "options": [{"exploitation": "active"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-22T00:00:00+00:00", "version": "2.0.3"}}]}, "published": "2026-09-22T08:16:43.047", "references": [{"source": "psirt@arista.com", "tags": ["Mitigation", "Vendor Advisory"], "url": "https://www.arista.com/en/support/advisories-notices/security-advisory/24765-security-advisory-0183"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["US Government Resource"], "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-93952"}], "sourceIdentifier": "psirt@arista.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "psirt@arista.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": ["velocloud_orchestrator_on-prem"], "status": "affected", "versions": {"scheme": "generic", "value": "[5.2.0,5.2.3.15]"}}, {"platform": ["velocloud_orchestrator_on-prem"], "status": "affected", "versions": {"scheme": "generic", "value": "[6.1.0,6.1.3.7]"}}, {"platform": ["velocloud_orchestrator_on-prem"], "status": "affected", "versions": {"scheme": "generic", "value": "[6.4.0,6.4.2.7]"}}, {"platform": ["velocloud_orchestrator_on-prem"], "status": "affected", "versions": {"scheme": "generic", "value": "[7.0.0,7.0.0.2]"}}], "enrichment": {"confidence": 94.0, "confidence_source": "matching", "scores": [{"score": 94.0, "source": "matching"}]}, "original": {"product": "VeloCloud Orchestrator (VCO) On-Prem", "source": "cna", "vendor": "Arista Networks"}, "product": "velocloud_orchestrator_on-prem", "vendor": "arista_networks"}], "created": "2026-09-22T08:30:17.310185+00:00", "title": "Privilege Escalation via VeloCloud Orchestrator Web Interface", "updated": "2026-09-22T22:00:08.576925+00:00", "vendors": ["arista_networks", "arista_networks$PRODUCT$velocloud_orchestrator_on-prem"]}