VeloCloud Orchestrator OS Command Injection

Answer in brief

CVE-2026-16812 records a High severity vulnerability in VeloCloud Orchestrator OS Command Injection. The current sources mark it as known exploited. The current feed maps Arista Networks/VeloCloud Orchestrator On-Prem (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jul 27, 2026Updated Jul 30, 2026Source checked Sep 19, 2026First seen by HOL Aug 2, 2026Material review Jul 30, 2026

Upstream Advisory

Key facts

Risk: High
Exploitation: Known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. Known-exploitation status makes exposure review time-sensitive. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Arista Networks/VeloCloud Orchestrator On-Prem (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Arista Networks/VeloCloud Orchestrator On-Premgeneric	>=5.2.0 <5.2.3.14 \|\| >=6.1.0 <6.1.3.4 \|\| >=6.4.0 <6.4.2.4 \|\| >=7.0.0 <7.0.0.1	5.2.3.14, 6.1.3.4, 6.4.2.4, 7.0.0.1

Recommended response

Check inventory. Check lockfiles and deployed manifests for Arista Networks/VeloCloud Orchestrator On-Prem.
Review the reported fix. Update Arista Networks/VeloCloud Orchestrator On-Prem to 5.2.3.14 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Jul 27, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Jul 30, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 2, 2026
Added to CISA KEV
Jul 27, 2026
Evidence: source:kev:kev:kev:record

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.