CVE-2026-93952

CRITICAL10.0

CISA KEV

Published 2026-09-22 · Updated 2026-09-23 · Source psirt@arista.com

Summary

CVE-2026-93952 is a critical-severity (CVSS 10.0) vulnerability in Arista VeloCloud Orchestrator. CISA added it to the Known Exploited Vulnerabilities catalog on September 22, 2026, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by September 25, 2026. CISA does not currently list it as used in ransomware campaigns. Arista has 3 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.

All 3 known-exploited Arista vulnerabilities →

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. Hosted, including Dedicated, versions of VCO were impacted and have already been patched.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CWE-20

CISA Known-Exploited Vulnerability

Product: Arista — VeloCloud Orchestrator

Name: Arista VeloCloud Orchestrator Improper Input Validation Vulnerability

Date added: 2026-09-22 · Due: 2026-09-25

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

View on NVD

More exploited Arista vulnerabilities

Most recently added to CISA KEV

CVE-2026-16812
VeloCloud Orchestrator — Arista VeloCloud Orchestrator On-Prem OS Command Injection Vulnerability
added 2026-07-27
CVE-2026-7473
Extensible Operating System — Arista Extensible Operating System Incomplete Comparison with Missing Factors Vulnerability
added 2026-06-09

View all →

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