Actively exploited · Published Dec 5, 2025 · Assigned by mitre
CVE-2025-66644
High 7.2 Exploited
In plain English
A high-severity OS command injection in ArrayOS AG from Array Networks. Attackers are actively exploiting it in the wild (listed by CISA on December 8, 2025). The chance it is exploited in the next 30 days is estimated at 3.3% (higher than 89% of all known vulnerabilities). Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA guidance
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Federal agencies must remediate by Dec 29, 2025.
Official description
Array Networks ArrayOS AG before 9.4.5.9 allows command injection, as exploited in the wild in August through December 2025.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Array Networks | ArrayOS AG | 0 – before 9.4.5.9 |
Weakness: CWE-78 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
References
- https://www.jpcert.or.jp/at/2025/at250024.html
- https://x.com/ArraySupport/status/1921373397533032590
- https://www.bleepingcomputer.com/news/security/hackers-are-exploiting-arrayos-ag-vpn-flaw-to-plant-webshells/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-66644 government-resource