CVE-2026-93952 (GCVE-0-2026-93952)
Vulnerability from cvelistv5 – Published: 2026-09-22 07:37 – Updated: 2026-09-22 13:14
VLAI
EPSS
VEX
Title
Security Advisory 0183
Summary
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.
Hosted, including Dedicated, versions of VCO were impacted and have already been patched.
Severity
10 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 13:13 UTC
CWE
- CWE-20 - Improper Input Validation
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.arista.com/en/support/advisories-noti… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Arista Networks | VeloCloud Orchestrator (VCO) On-Prem |
Affected:
5.2.0 , ≤ 5.2.3.15
(custom)
Affected: 6.1.0 , ≤ 6.1.3.7 (custom) Affected: 6.4.0 , ≤ 6.4.2.7 (custom) Affected: 7.0.0 , ≤ 7.0.0.2 (custom) |
guessed |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-93952",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-22T13:13:56.046701Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-22T13:14:07.101Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"platforms": [
"VeloCloud Orchestrator On-Prem"
],
"product": "VeloCloud Orchestrator (VCO) On-Prem",
"vendor": "Arista Networks",
"versions": [
{
"lessThanOrEqual": "5.2.3.15",
"status": "affected",
"version": "5.2.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "6.1.3.7",
"status": "affected",
"version": "6.1.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "6.4.2.7",
"status": "affected",
"version": "6.4.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "7.0.0.2",
"status": "affected",
"version": "7.0.0",
"versionType": "custom"
}
]
}
],
"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."
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eVeloCloud 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.\u003c/p\u003e\u003cp\u003eHosted, including Dedicated, versions of VCO were impacted and have already been patched.\u003c/p\u003e"
}
],
"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."
}
],
"impacts": [
{
"capecId": "CAPEC-115",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-115 Authentication Bypass"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 10,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
},
{
"cvssV4_0": {
"baseScore": 9.5,
"baseSeverity": "CRITICAL",
"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",
"version": "4.0"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-20",
"description": "CWE-20 Improper Input Validation",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-22T07:37:24.300Z",
"orgId": "c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7",
"shortName": "Arista"
},
"references": [
{
"name": "Security Advisory 0183",
"tags": [
"vendor-advisory"
],
"url": "https://www.arista.com/en/support/advisories-notices/security-advisory/24765-security-advisory-0183"
}
],
"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."
}
],
"source": {
"advisory": "Security Advisory 0183",
"defect": [
"BUG1907167",
"BUG1937417"
],
"discovery": "EXTERNAL"
},
"title": "Security Advisory 0183",
"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."
}
]
}
},
"cveMetadata": {
"assignerOrgId": "c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7",
"assignerShortName": "Arista",
"cveId": "CVE-2026-93952",
"datePublished": "2026-09-22T07:37:24.300Z",
"dateReserved": "2026-09-19T01:37:47.225Z",
"dateUpdated": "2026-09-22T13:14:07.101Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-93952",
"date": "2026-09-22",
"epss": "0.00424",
"percentile": "0.36318"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"platforms": [
"VeloCloud Orchestrator On-Prem"
],
"product": "VeloCloud Orchestrator (VCO) On-Prem",
"vendor": "Arista Networks",
"versions": [
{
"lessThanOrEqual": "5.2.3.15",
"status": "affected",
"version": "5.2.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "6.1.3.7",
"status": "affected",
"version": "6.1.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "6.4.2.7",
"status": "affected",
"version": "6.4.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "7.0.0.2",
"status": "affected",
"version": "7.0.0",
"versionType": "custom"
}
]
}
],
"source": "psirt@arista.com"
}
],
"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": "2026-09-22T14:17:18.643",
"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": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-22T13:13:56.046701Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-09-22T08:16:43.047",
"references": [
{
"source": "psirt@arista.com",
"url": "https://www.arista.com/en/support/advisories-notices/security-advisory/24765-security-advisory-0183"
}
],
"sourceIdentifier": "psirt@arista.com",
"vulnStatus": "Received",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-20"
}
],
"source": "psirt@arista.com",
"type": "Secondary"
}
]
}
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-93952",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-22T13:13:56.046701Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-22T13:14:01.833Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"platforms": [
"VeloCloud Orchestrator On-Prem"
],
"product": "VeloCloud Orchestrator (VCO) On-Prem",
"vendor": "Arista Networks",
"versions": [
{
"lessThanOrEqual": "5.2.3.15",
"status": "affected",
"version": "5.2.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "6.1.3.7",
"status": "affected",
"version": "6.1.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "6.4.2.7",
"status": "affected",
"version": "6.4.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "7.0.0.2",
"status": "affected",
"version": "7.0.0",
"versionType": "custom"
}
]
}
],
"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."
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eVeloCloud 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.\u003c/p\u003e\u003cp\u003eHosted, including Dedicated, versions of VCO were impacted and have already been patched.\u003c/p\u003e"
}
],
"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."
}
],
"impacts": [
{
"capecId": "CAPEC-115",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-115 Authentication Bypass"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 10,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
},
{
"cvssV4_0": {
"baseScore": 9.5,
"baseSeverity": "CRITICAL",
"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",
"version": "4.0"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-20",
"description": "CWE-20 Improper Input Validation",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-22T07:37:24.300Z",
"orgId": "c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7",
"shortName": "Arista"
},
"references": [
{
"name": "Security Advisory 0183",
"tags": [
"vendor-advisory"
],
"url": "https://www.arista.com/en/support/advisories-notices/security-advisory/24765-security-advisory-0183"
}
],
"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."
}
],
"source": {
"advisory": "Security Advisory 0183",
"defect": [
"BUG1907167",
"BUG1937417"
],
"discovery": "EXTERNAL"
},
"title": "Security Advisory 0183",
"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."
}
]
}
},
"cveMetadata": {
"assignerOrgId": "c8b34d1a-69ae-45c3-88fe-f3b3d44f39b7",
"assignerShortName": "Arista",
"cveId": "CVE-2026-93952",
"datePublished": "2026-09-22T07:37:24.300Z",
"dateReserved": "2026-09-19T01:37:47.225Z",
"dateUpdated": "2026-09-22T13:14:07.101Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…