CVE-2026-16812: CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in Arista Networks VeloCloud Orchestrator On-Prem
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.
AI Analysis
Technical Summary
CVE-2026-16812 is an OS command injection vulnerability in Arista Networks VeloCloud Orchestrator On-Prem. It arises from improper neutralization of special elements in OS commands, enabling remote attackers to execute arbitrary commands with elevated privileges. This vulnerability affects specific on-premises versions (5.2.0, 6.1.0, 6.4.0, 7.0.0) and compromises the confidentiality, integrity, and availability of the orchestrator and its managed data. The vulnerable functionality was designed for internal use and was not intended to be remotely accessible. Hosted and Dedicated VCO versions have already been patched before this advisory. The vulnerability is known to be actively exploited.
Potential Impact
Successful exploitation can lead to full compromise of the VeloCloud Orchestrator On-Prem host, including unauthorized access to privileged internal functions and potential control over the orchestrator's data and operations. This impacts confidentiality, integrity, and availability of the system and managed data. The vulnerability is remotely exploitable without authentication and has a CVSS 3.1 score of 10.0 (critical).
Mitigation Recommendations
No official patch or remediation level is currently confirmed for the on-prem versions. Hosted and Dedicated VCO versions have been patched in advance. Organizations using affected on-prem versions should monitor the vendor advisory for updates and apply patches as soon as they become available. Until then, restrict remote access to the vulnerable functionality to prevent exploitation.
CVE-2026-16812: CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in Arista Networks VeloCloud Orchestrator On-Prem
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.
CVSS v3.1
Score 10.0critical
Affected software
Arista Networks
VeloCloud Orchestrator On-Prem
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-16812 is an OS command injection vulnerability in Arista Networks VeloCloud Orchestrator On-Prem. It arises from improper neutralization of special elements in OS commands, enabling remote attackers to execute arbitrary commands with elevated privileges. This vulnerability affects specific on-premises versions (5.2.0, 6.1.0, 6.4.0, 7.0.0) and compromises the confidentiality, integrity, and availability of the orchestrator and its managed data. The vulnerable functionality was designed for internal use and was not intended to be remotely accessible. Hosted and Dedicated VCO versions have already been patched before this advisory. The vulnerability is known to be actively exploited.
Potential Impact
Successful exploitation can lead to full compromise of the VeloCloud Orchestrator On-Prem host, including unauthorized access to privileged internal functions and potential control over the orchestrator's data and operations. This impacts confidentiality, integrity, and availability of the system and managed data. The vulnerability is remotely exploitable without authentication and has a CVSS 3.1 score of 10.0 (critical).
Mitigation Recommendations
No official patch or remediation level is currently confirmed for the on-prem versions. Hosted and Dedicated VCO versions have been patched in advance. Organizations using affected on-prem versions should monitor the vendor advisory for updates and apply patches as soon as they become available. Until then, restrict remote access to the vulnerable functionality to prevent exploitation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Arista
- Date Reserved
- 2026-07-23T21:46:32.558Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a6786039c2644c7f861a4fb
Added to database: 07/27/2026, 16:23:31 UTC
Last enriched: 07/30/2026, 00:14:34 UTC
Last updated: 09/11/2026, 22:06:31 UTC
Views: 63
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