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…
Browse: All 2026 CVEs · All vendors
- CVSS score
- 10.0 Critical
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H- CISA KEV
- Yes — actively exploited (added 2026-07-27, remediation due 2026-07-30)
- Weakness (CWE)
- CWE-78
- Published
- 2026-07-27
- Last modified
- 2026-07-28
- NVD status
- Analyzed
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.
Affected products
- arista velocloud orchestrator
Affected ranges per NVD CPE data; confirm exact versions in the vendor advisory.
Required action (CISA)
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. Federal remediation deadline: 2026-07-30.
How to prioritize this
This vulnerability is on the CISA KEV list, meaning it is being actively exploited — treat it as urgent regardless of the raw CVSS number. Use the live CVE lookup for the latest NVD data, and the CVSS 3.1 calculator to model your own environmental score.
References
- https://www.arista.com/en/support/advisories-notices/security-advisory/24364-security-advisory-0144
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-16812
FAQ
Is CVE-2026-16812 actively exploited?
Yes. CISA added CVE-2026-16812 to its Known Exploited Vulnerabilities (KEV) catalog on 2026-07-27, with a federal remediation deadline of 2026-07-30. A KEV listing means real-world exploitation is confirmed, so patching this should be prioritized above many higher-CVSS bugs that aren't being exploited.
What is the CVSS score of CVE-2026-16812?
CVE-2026-16812 has a CVSS base score of 10.0 (Critical). Its vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
Related vulnerabilities
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- CVE-2026-73570 — Synacor Zimbra Collaboration Suite (ZCS)
- CVE-2026-25089 — Fortinet FortiSandbox
- CVE-2026-39808 — Fortinet FortiSandbox
- CVE-2026-10520 — Ivanti Sentry
- CVE-2026-42271 — BerriAI LiteLLM
Data source: NVD & CISA KEV. Shown as-is; nothing added. Last generated from NVD data — re-check the live tool for updates.
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