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[ CVE-2025-66644 · Published 5 Dec 2025 ]

Array Networks ArrayOS AG OS Command Injection Vulnerability

Exploited · CISA KEV CVSS 9.8 EPSS 3%No fix listed yet

[ Why it matters ]Priority signals

  • Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2025-12-08
  • Critical severity: CVSS 9.8

[ Description ]Official description

Array Networks ArrayOS AG before 9.4.5.9 allows command injection, as exploited in the wild in August through December 2025.

CISA: Array Networks ArrayOS AG contains an OS command injection vulnerability that could allow an attacker to execute arbitrary commands.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 29 Dec 2025): Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References