CVE-2026-93952
CriticalExploitedPublic exploitSecurity Advisory 0183
Published Sep 22, 2026 · Updated Sep 23, 2026 · Also known as EUVD-2026-84296, GHSA-fqhw-f6hf-cq3w
Key Facts
Patch immediately- CVE-2026-93952 is a critical-severity vulnerability (CVSS 9.5 v4) affecting Velocloud Orchestrator (Arista), VeloCloud Orchestrator (VCO) On-Prem.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Sep 22, 2026. Public exploit code is available.
- EPSS estimates a 1.1% probability of exploitation in the next 30 days.
- Fixed versions are available, including Velocloud Orchestrator 5.2.3.16, Velocloud Orchestrator 6.4.2.8.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v4
9.5
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
EPSS (30-day exploit likelihood)
1.1%
Higher than 64.0% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2026-93952 brief as a PDF
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Description
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Sep 22, 2026 | Sep 25, 2026 | Not reported |
| Industry KEV feed | Sep 22, 2026 | Sep 25, 2026 | Not reported |
| CIRCL KEV | Sep 22, 2026 | Sep 25, 2026 | Not reported |
| ENISA EUVD | Sep 22, 2026 | n/a | Not reported |
Required action: 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.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Velocloud OrchestratorArista | See advisory | 5.2.3.16 |
| VeloCloud Orchestrator (VCO) On-Prem | >= 5.2.0 | n/a |
Patched Releases
Velocloud Orchestrator
5.2.3.16, 6.4.2.8
Timeline
Publicly disclosed
Sep 22, 2026
Added to CISA KEV
Sep 22, 2026
Added to Industry KEV feed
Sep 22, 2026
Added to CIRCL KEV
Sep 22, 2026
Added to ENISA EUVD
Sep 22, 2026
Last updated
Sep 23, 2026
Weakness Type
- CWE-20 Improper Input Validation
References
FAQ
Common Questions.
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.
Affected: Velocloud Orchestrator (Arista); VeloCloud Orchestrator (VCO) On-Prem versions >= 5.2.0. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Sep 22, 2026.
Yes. It was added on Sep 22, 2026 with a federal remediation due date of Sep 25, 2026.
Public exploit code is available.
Fixed versions are available, including Velocloud Orchestrator 5.2.3.16, Velocloud Orchestrator 6.4.2.8.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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