CVE-2026-16812
published 2026-07-27CVE-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…
PriorityP192critical10CVSS 3.1
AVNACLPRNUINSCCHIHAH
KEVITW
CISA Known Exploited Vulnerabilitydue 2026-07-30
Exploited in the wild
EPSS
1.57%
73.1th percentile
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
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| arista | velocloud_orchestrator | — | — |
| arista | velocloud_orchestrator | >= 5.2.0 < 5.2.3.14 | 5.2.3.14 |
| arista | velocloud_orchestrator | >= 6.1.0 < 6.1.3.4 | 6.1.3.4 |
| arista | velocloud_orchestrator | >= 6.4.0 < 6.4.2.4 | 6.4.2.4 |
| arista_networks | velocloud_orchestrator_on-prem | >= 5.2.0 < 5.2.3.14 | 5.2.3.14 |
| arista_networks | velocloud_orchestrator_on-prem | >= 6.1.0 < 6.1.3.4 | 6.1.3.4 |
| arista_networks | velocloud_orchestrator_on-prem | >= 6.4.0 < 6.4.2.4 | 6.4.2.4 |
| arista_networks | velocloud_orchestrator_on-prem | >= 7.0.0 < 7.0.0.1 | 7.0.0.1 |
CVSS provenance
nvdv3.110.0CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
nvdv4.010.0CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:X/R:X/V:X/RE:X/U:X
vulncheck10.0CRITICAL
cisa10.0CRITICAL
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VulDB
Arista VeloCloud Orchestrator On-Prem prior 5.2.3.14/6.1.3.4/6.4.2.4/7.0.0.1 privileges management
vuldb·2026-07-27·CVSS 10.0
CVE-2026-16812 [CRITICAL] Arista VeloCloud Orchestrator On-Prem prior 5.2.3.14/6.1.3.4/6.4.2.4/7.0.0.1 privileges management
A vulnerability described as very critical has been identified in Arista VeloCloud Orchestrator On-Prem. This issue affects some unknown processing. Such manipulation leads to improper privilege management.
This vulnerability is documented as CVE-2026-16812. The attack can be executed remotely. Additionally, an exploit exists.
Upgrading the affected component is recommended.
GHSA
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.
ghsa_unreviewed·2026-07-27
CVE-2026-16812 [CRITICAL] CWE-78 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.
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.
VulnCheck
Arista VeloCloud Orchestrator On-Prem OS Command Injection Vulnerability
vulncheck·2026·CVSS 10.0
CVE-2026-16812 [CRITICAL] CWE-78 Arista VeloCloud Orchestrator On-Prem OS Command Injection Vulnerability
Arista VeloCloud Orchestrator On-Prem OS Command Injection Vulnerability
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.
Affected: Arista VeloCloud 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 mitiga
CISA
Arista VeloCloud Orchestrator On-Prem OS Command Injection Vulnerability
cisa·2026-07-27·CVSS 10.0
CVE-2026-16812 [CRITICAL] CWE-78 Arista VeloCloud Orchestrator On-Prem OS Command Injection Vulnerability
Vulnerability: Arista VeloCloud Orchestrator On-Prem OS Command Injection Vulnerability
Affected: Arista VeloCloud Orchestrator
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 pro
No detection rules found.
No public exploits indexed.
2026-07-27
Published
2026-07-27
Added to CISA KEV
Exploited in the wild