CVE entry · CVE-2025-66644
CVE-2025-66644: Array Networks ArrayOS AG OS Command Injection Vulnerability
Array Networks ArrayOS AG contains an OS command injection vulnerability that could allow an attacker to execute arbitrary commands.
- Actively exploited: added to CISA’s KEV catalog on December 8, 2025.
- Use by ransomware: not established so far.
- Remediation deadline for US federal agencies: December 29, 2025.
Description from CISA’s KEV catalog.
What to do
- Check whether your estate includes Array Networks ArrayOS AG, including internet-facing devices.
- Apply the vendor’s patch or mitigations (references below). Failing that, isolate the product or stop using it, as CISA requires of US federal agencies.
- An exploited vulnerability has often been used before it was fixed: look for signs of compromise, especially on internet-facing devices.
References
- Vendor advisory or reference cited by CISA (support.arraynetworks.net)
- Vendor advisory or reference cited by CISA (www.jpcert.or.jp)
- NVD entry (NIST)
- CISA KEV catalog