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CVE-2026-93952

Security Advisory 0183

CRITICAL
10
CVSS Score
Published: September 22, 2026 at 07:37 AM UTC
Updated: September 23, 2026 at 03:09 PM UTC
2 products affected across 2 vendorsVelocloud OrchestratorVeloCloud Orchestrator

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Severity
CRITICAL10
Exploitation
CISA KEV
Exploit prediction
EPSS 1%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score1.4%

EPSS (Exploit Prediction Scoring System) estimates a 1.4% chance this CVE is exploited in the wild within the next 30 days — higher than 72% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

Arista VeloCloud Orchestrator (VCO) on-prem contains an improper input validation vulnerability that 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.

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.
Ransomware Use
Unknown
Added to KEV
Sep 22, 2026
Remediation Due
Sep 25, 2026
43 days overdue
Notes
https://www.arista.com/en/support/advisories-notices/security-advisory/24765-security-advisory-0183
BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk
Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk
https://nvd.nist.gov/vuln/detail/CVE-2026-93952

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Velocloud Orchestrator· Arista
95%
5.2.0 ≤ v < 5.2.3.166.1.0 ≤ v ≤ 6.1.3.76.4.0 ≤ v < 6.4.2.87.0.0 ≤ v ≤ 7.0.0.2
Affected range stops below 5.2.3.16, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.4.2.8, so it looks safe — our inference, not a vendor statement
VeloCloud Orchestrator· Arista Networks
60%
5.2.0 ≤ v ≤ 5.2.3.156.1.0 ≤ v ≤ 6.1.3.76.4.0 ≤ v ≤ 6.4.2.77.0.0 ≤ v ≤ 7.0.0.25.2.06.1.06.4.07.0.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor AdvisoryMitigation
Source: cverecord
https://www.arista.com/en/support/advisories-notices/security-advisory/24765-security-advisory-0183
US Government Resource
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-93952

SSVC — Action Prioritization

SSVCActiveAutomatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

10CRITICALArista
Vector?

Quick Info

StatusANALYZED
CWE
CWE-20

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