CVE-2026-16812 Exploited in the wild
Arista VeloCloud Orchestrator On-Prem OS Command Injection Vulnerability
- Risk score
- 90/100
- CVSS
- 10.0 v3.1
- Published
- 27 Jul 2026
- Added to CISA's exploited list
- 27 Jul 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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. T…
- Affected
- Arista Velocloud Orchestrator
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- Exploited in the wild
Story map
At a glance
Arista Velocloud Orchestrator: Red, act today. Arista VeloCloud Orchestrator has a SQL injection vulnerability that allows a remote attacker to access privileged functionality and potentially compromise the orchestrator and data. An authenticated user can gain operator privileges and access internal functionality.
The flaws
- CVE-2026-16812: Arista VeloCloud Orchestrator On-Prem OS Command Injection Vulnerability (CVSS 10.0 · exploited)
- CVE-2026-114625: Arista VeloCloud Orchestrator SQL Injection Vulnerability (CVSS 9.9 · EPSS 1% · exploited)
- CVE-2026-93952: Arista VeloCloud Orchestrator Improper Input Validation Vulnerability (exploited)
The fix
Fix: Apply mitigations in accordance with vendor instructions, or discontinue use of the product if mitigations are unavailable
Who is exposed: {'products': ['VeloCloud Orchestrator'], 'packages': [], 'versions': ['on-prem']}
Where it stands
- Exploited in the wild
- On CISA's exploited list since 27 Jul
- US federal deadline 30 Jul
- 2 outlets covering it
How it unfolded
- 27 Jul, CISA (official): Added to the Known Exploited Vulnerabilities list (3 of these flaws)
- 30 Jul, Deadline (official): US federal agencies must have patched
- 22 Oct, BleepingComputer (press): Arista patches new VeloCloud Orchestrator zero-day exploited in attacks
- 23 Oct, SecurityWeek (press): Attackers Exploit Third Arista VCO Zero-Day in Four Months
- 23 Oct, CISA advisories (US) (official): CISA Adds One Known Exploited Vulnerability to Catalog
Connects to
- Same weakness: OS command injection (CWE-78). 309 other warnings in 30 days
In the news
Why it is Red
- CVSS 10.0 critical
- Exploited in the wild (CISA KEV)
- Remotely exploitable without logging in
CISA 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.
References
Original 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.
Last activity 27 Jul 2026. Patch Forecast updates every hour.