NCSC-2026-0385
Vulnerability from csaf_ncscnl - Published: 2026-09-22 14:34 - Updated: 2026-09-22 14:34Summary
Kwetsbaarheid verholpen in VeloCloud Orchestrator (VCO) on-premises
Notes
The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions:
NCSC-NL makes every reasonable effort to ensure that the content of this page is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein.
NCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory.
This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings.
Feiten: VeloCloud heeft een kwetsbaarheid verholpen in VeloCloud Orchestrator (VCO) on-premises.
Interpretaties: De kwetsbaarheid in VCO stelt externe aanvallers in staat om toegang te krijgen tot geprivilegieerde interne functionaliteit, wat de vertrouwelijkheid, integriteit en beschikbaarheid kan aantasten.
De kwetsbaarheid wordt actief uitgebuit en is in hosted VCO-omgevingen reeds verholpen.
Beperk de toegang tot de VCO-webinterface tot vertrouwde administratieve netwerken om de blootstelling aan de kwetsbaarheid te verminderen en monitor de omgeving op mogelijke compromittering.
Oplossingen: VeloCloud heeft updates uitgebracht om de kwetsbaarheid te verhelpen. Zie het bijgevoegde beveiligingsadvies van Arista voor Indicators of Compromise (IoC's) en informatie over de beschikbare patches.
Dreigingsinformatie: Files
/usr/local/sbin/.vcnode.js
/usr/local/sbin/vc-sysmond
Known malicious hash of file is (md5)
“dc78e206eaeadec59fc5801fe4556bd0”
/etc/systemd/system/vc-sysmon.service
The following HTTP header in nginx logs
x-vc-opt
Connections from the following IP addresses
142.93.149.77
104.248.126.159
Kans: medium
Schade: high
CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
A remote vulnerability in VeloCloud Orchestrator (VCO) on-prem enables attackers to access privileged internal functions, with operators advised to monitor web access, backend, and system logs for suspicious activity and preserve evidence if compromise is suspected.
10.0 (Critical)
Affected products
Known affected
2 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
vers:unknown/*
Arista / VeloCloud Orchestrator On-Prem
|
vers:unknown/* | ||
|
vers:unknown/*
Arista Networks / VeloCloud Orchestrator (VCO) On-Prem
|
vers:unknown/* |
References
1 reference
| URL | Category |
|---|---|
| https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-… | self |
{
"document": {
"category": "csaf_security_advisory",
"csaf_version": "2.0",
"distribution": {
"tlp": {
"label": "WHITE"
}
},
"lang": "nl",
"notes": [
{
"category": "legal_disclaimer",
"text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions:\n\n NCSC-NL makes every reasonable effort to ensure that the content of this page is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein.\n\n NCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory.\n This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings."
},
{
"category": "description",
"text": "VeloCloud heeft een kwetsbaarheid verholpen in VeloCloud Orchestrator (VCO) on-premises.",
"title": "Feiten"
},
{
"category": "description",
"text": "De kwetsbaarheid in VCO stelt externe aanvallers in staat om toegang te krijgen tot geprivilegieerde interne functionaliteit, wat de vertrouwelijkheid, integriteit en beschikbaarheid kan aantasten.\nDe kwetsbaarheid wordt actief uitgebuit en is in hosted VCO-omgevingen reeds verholpen.\nBeperk de toegang tot de VCO-webinterface tot vertrouwde administratieve netwerken om de blootstelling aan de kwetsbaarheid te verminderen en monitor de omgeving op mogelijke compromittering.\n",
"title": "Interpretaties"
},
{
"category": "description",
"text": "VeloCloud heeft updates uitgebracht om de kwetsbaarheid te verhelpen. Zie het bijgevoegde beveiligingsadvies van Arista voor Indicators of Compromise (IoC\u0027s) en informatie over de beschikbare patches.",
"title": "Oplossingen"
},
{
"category": "description",
"text": "Files\n\n /usr/local/sbin/.vcnode.js\n /usr/local/sbin/vc-sysmond\n Known malicious hash of file is (md5)\n \u201cdc78e206eaeadec59fc5801fe4556bd0\u201d\n /etc/systemd/system/vc-sysmon.service\n\nThe following HTTP header in nginx logs\n\n x-vc-opt\n\nConnections from the following IP addresses\n\n 142.93.149.77\n 104.248.126.159\n",
"title": "Dreigingsinformatie"
},
{
"category": "general",
"text": "medium",
"title": "Kans"
},
{
"category": "general",
"text": "high",
"title": "Schade"
},
{
"category": "general",
"text": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
"title": "CWE-22"
}
],
"publisher": {
"category": "coordinator",
"contact_details": "cert@ncsc.nl",
"name": "Nationaal Cyber Security Centrum",
"namespace": "https://www.ncsc.nl/"
},
"title": "Kwetsbaarheid verholpen in VeloCloud Orchestrator (VCO) on-premises",
"tracking": {
"current_release_date": "2026-09-22T14:34:34.678954Z",
"generator": {
"date": "2025-08-04T16:30:00Z",
"engine": {
"name": "V.A.",
"version": "1.3"
}
},
"id": "NCSC-2026-0385",
"initial_release_date": "2026-09-22T14:34:34.678954Z",
"revision_history": [
{
"date": "2026-09-22T14:34:34.678954Z",
"number": "1.0.0",
"summary": "Initiele versie"
}
],
"status": "final",
"version": "1.0.0"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "vers:unknown/*",
"product": {
"name": "vers:unknown/*",
"product_id": "CSAFPID-1"
}
}
],
"category": "product_name",
"name": "VeloCloud Orchestrator On-Prem"
}
],
"category": "vendor",
"name": "Arista"
},
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "vers:unknown/*",
"product": {
"name": "vers:unknown/*",
"product_id": "CSAFPID-2"
}
}
],
"category": "product_name",
"name": "VeloCloud Orchestrator (VCO) On-Prem"
}
],
"category": "vendor",
"name": "Arista Networks"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2026-93952",
"notes": [
{
"category": "description",
"text": "A remote vulnerability in VeloCloud Orchestrator (VCO) on-prem enables attackers to access privileged internal functions, with operators advised to monitor web access, backend, and system logs for suspicious activity and preserve evidence if compromise is suspected.",
"title": "Summary"
},
{
"category": "general",
"text": "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",
"title": "CVSSV4"
}
],
"product_status": {
"known_affected": [
"CSAFPID-1",
"CSAFPID-2"
]
},
"references": [
{
"category": "self",
"summary": "CVE-2026-93952 | NCSC-NL Website",
"url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-93952.json"
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 10.0,
"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"
},
"products": [
"CSAFPID-1",
"CSAFPID-2"
]
}
],
"title": "CVE-2026-93952"
}
]
}
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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
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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
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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.
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