Exploited vulnerabilities / CVE-2025-66644
Confirmed exploited · command injection · ArrayOS AGCVE-2025-66644
ArrayOS AG command injection, confirmed exploited in the wild.
Array Networks ArrayOS AG contains an OS command injection vulnerability that could allow an attacker to execute arbitrary commands.
| CISA's name for it | Array Networks ArrayOS AG OS Command Injection Vulnerability |
|---|---|
| Vendor and product | Array Networks · ArrayOS AG |
| Type | command injection · CWE-78 |
| Exploited | Confirmed by CISA listed 8 December 2025 |
| Likelihood | more likely to be exploited than most |
| Deadline | 29 December 2025 · already passed |
| Used in ransomware | Not reported |
| Advisories | support.arraynetworks.net ↗ · www.jpcert.or.jp ↗ · nvd.nist.gov ↗ |
Three steps, in this order
Apply the vendor fix; command injection on an exposed device is used within days of disclosure.
Restrict the management interface to a trusted network until the fix is in.
Review the device's logs and configuration for changes you did not make.
| CISA's required action | Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. |
|---|
Know before someone else finds it
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CVE-2025-66644 in short
Is CVE-2025-66644 being exploited?
Yes. CISA added CVE-2025-66644 to its Known Exploited Vulnerabilities catalogue on 8 December 2025, which it does only on evidence of exploitation in the wild.
What is the CISA deadline for CVE-2025-66644?
US federal agencies must remediate it by 29 December 2025. Everyone else should treat that date as the latest safe point to patch an internet-facing system.
How likely is CVE-2025-66644 to be exploited in the next 30 days?
FIRST's Exploit Prediction Scoring System gives it 3.3%, the 88th percentile of every CVE it scores.
How do I fix CVE-2025-66644?
Apply the vendor fix; command injection on an exposed device is used within days of disclosure. Restrict the management interface to a trusted network until the fix is in. Review the device's logs and configuration for changes you did not make.
Sources: CISA Known Exploited Vulnerabilities catalogue (released 10 November 2026) and FIRST EPSS. Page compiled automatically by SAK T.L.M, the threat-intelligence tool of SAK T.E.C, on 13 November 2026.