CSIRTS // UNIFIED SECURITY ADVISORY FEEDSYS ● ONLINE · POWERED BY INTELFUSIONS.COM

← Back to feed

CVE-2026-16812: 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. Successf

criticalknown exploitedCVSS 10CVE-2026-16812
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
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.

CSIRTS triage

vendor: Aristaproduct: VeloCloud OrchestratorRemote code executionaffected: On-prem versions
What
A remote command injection vulnerability allows attackers to access privileged internal functionality.
Who is affected
Users of the on-prem versions of VeloCloud Orchestrator.
Urgency
This is critical and urgent due to active exploitation and high severity.
Action
Apply the latest patches provided by Arista immediately.

AI-assisted analysis generated from the source advisory — verify against the original.

⚡ Watch VeloCloud Orchestrator

Get an email when a new VeloCloud Orchestrator advisory drops — max one per day, one-click unsubscribe.

Details

Source
NVD Recent CVEs (US · database · site)
Severity
critical — CVSS 10
Published
2026-07-27
Last updated
2026-07-28
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-16812

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-16812coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for VeloCloud Orchestrator

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

More from NVD Recent CVEs