Vulnerability details
CVE-2026-16812
Actively exploited
Arista Networks VeloCloud Orchestrator On-Prem
VeloCloud Orchestrator OS Command Injection
CVSS 4.0
10.0Critical
Official 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 scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 10.0Critical | 4.0 | CVEProject cvelistV5 (CNA) (Arista) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/S:P |
| 10.0Critical | 3.1 | CVEProject cvelistV5 (CNA) (Arista) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Arista Networks | VeloCloud Orchestrator On-Prem | 5.2.0 ≤ v < 5.2.3.14 | CVEProject cvelistV5 (CNA) |
| Arista Networks | VeloCloud Orchestrator On-Prem | 6.1.0 ≤ v < 6.1.3.4 | CVEProject cvelistV5 (CNA) |
| Arista Networks | VeloCloud Orchestrator On-Prem | 6.4.0 ≤ v < 6.4.2.4 | CVEProject cvelistV5 (CNA) |
| Arista Networks | VeloCloud Orchestrator On-Prem | 7.0.0 ≤ v < 7.0.0.1 | CVEProject cvelistV5 (CNA) |
References and advisories
2
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Details
- Published
- 2026-07-27
- Last updated
- 2026-07-28
- State
- Published
- Assigner (CNA)
- Arista
- Kolun priority
- 75 · High
CISA KEV catalog
- Date added
- 2026-07-27
- Due date
- 2026-07-30
- Used in ransomware
- Unknown
Exploit prediction (EPSS)
1.76%
Probability of exploitation in 30 days
78.1%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Active
- Technical impact
- Total
Weaknesses (CWE)
- CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')