CVE-2026-93952
Arista VeloCloud Orchestrator Improper Input Validation Vulnerability
Arista VeloCloud OrchestratorNetwork & edge
CVSS
10.0CriticalExploit odds (EPSS)1.06%Chance of exploitation activity in the next 30 days, higher than 64% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
CISA required actionApply 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. CISA KEV
Patching is not enoughCISA requires federal agencies to look for signs of compromise on affected systems, not only patch (forensic triage under BOD 26-04). Treat exposed systems as possibly compromised. CISA guidance
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Timeline
Reports 2
2 outlets mention it. Reports are not confirmation; each links to its source.
- @getpokemon7.bsky.social: 「VeloCloud Orchestrator」に深刻な脆弱性 - すでに悪用も 「VeloCloud Orchestrator(VCO)」にリモートから侵害されるおそれがある深刻な脆弱性が明らかとなった。すでに悪用が確認されている。 Arista Networksは現地時間9月22日にセキュリティアドバイザリを公開。入力値の検証不備に起因し、本来は高い権限Bluesky: CVE posts, 23 Oct 2026
- @getpokemon7.bsky.social: Arista社は、悪用されたVCOゼロデイ脆弱性に対する即時パッチ適用を強く要請する。 VCOは、Arista VeloCloud SD-WANにおけるエッジデバイス、ポリシー、トラフィックの設定、監視、オーケストレーションを行うための集中管理ツールです。 悪用されたゼロデイ脆弱性(CVE-2026-93952、CVSSスコア10)は、入力検証の不備に起因すBluesky: zero-day, 21 Oct 2026
Description
Arista VeloCloud Orchestrator (VCO) on-prem contains an improper input validation 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.
Text from CVE List
Affected versions 4
- VeloCloud Orchestrator (VCO) On-Premaffected: 5.2.0 through 5.2.3.15CVE List
- VeloCloud Orchestrator (VCO) On-Premaffected: 6.1.0 through 6.1.3.7CVE List
- VeloCloud Orchestrator (VCO) On-Premaffected: 6.4.0 through 6.4.2.7CVE List
- VeloCloud Orchestrator (VCO) On-Premaffected: 7.0.0 through 7.0.0.2CVE List