vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2026-16812

VeloCloud Orchestrator OS Command Injection

CRITICAL
10
CVSS Score
Published: July 27, 2026 at 04:11 PM UTC
Updated: October 24, 2026 at 01:10 PM UTC
2 products affected across 2 vendorsVelocloud OrchestratorVeloCloud Orchestrator

Using VeloCloud Orchestrator On-Prem by Arista Networks?

Get instant alerts when new vulnerabilities affect VeloCloud Orchestrator On-Prem - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
CRITICAL10
Exploitation
CISA KEV
Exploit prediction
EPSS 2%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score1.8%

EPSS (Exploit Prediction Scoring System) estimates a 1.8% chance this CVE is exploited in the wild within the next 30 days — higher than 78% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

Arista VeloCloud Orchestrator On-Prem contains an OS command injection 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
Jul 27, 2026
Remediation Due
Jul 30, 2026
96 days overdue
Notes
https://www.arista.com/en/support/advisories-notices/security-advisory/24364-security-advisory-0144
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-2026-16812

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. This functionality was intended to be for internal use only and is not intended to be remotely accessible. Hosted and Dedicated versions of VCO have already been patched in advance of this notice going out. This issue was discovered externally and is known to be actively exploited.

Affected

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

Velocloud Orchestrator· Arista
95%
5.2.0 ≤ v < 5.2.3.146.1.0 ≤ v < 6.1.3.46.4.0 ≤ v < 6.4.2.47.0.0
Affected range stops below 5.2.3.14, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.1.3.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.4.2.4, so it looks safe — our inference, not a vendor statement
VeloCloud Orchestrator· Arista Networks
90%
5.2.0 ≤ v < 5.2.3.146.1.0 ≤ v < 6.1.3.46.4.0 ≤ v < 6.4.2.47.0.0 ≤ v < 7.0.0.15.2.06.1.06.4.07.0.0
Affected range stops below 5.2.3.14, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.1.3.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.4.2.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.0.0.1, so it looks safe — our inference, not a vendor statement

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: [email protected]
https://www.arista.com/en/support/advisories-notices/security-advisory/24364-security-advisory-0144
US Government Resource
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-16812

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-78

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card