CVE-2025-66644 Details
Description
Array Networks ArrayOS AG before 9.4.5.9 allows command injection, as exploited in the wild in August through December 2025.
A command injection vulnerability has been identified in Array Networks ArrayOS AG versions prior to 9.4.5.9. This vulnerability affects AG Series hardware and virtual appliances with the 'DesktopDirect' remote access feature enabled. Exploitation of this flaw allows attackers to execute arbitrary commands, leading to the installation of webshells and the creation of unauthorized user accounts. The vulnerability has been actively exploited since August 2025, particularly targeting organizations in Japan.
Users are advised to update to ArrayOS AG version 9.4.5.9, which addresses this vulnerability. If an update is not possible, the 'DesktopDirect' feature can be disabled, or URL filtering can be used to block access to URLs containing a semicolon.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Dec 9, 2025References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-66644 | CISA-ADP | US Government Resource |
| https://www.bleepingcomputer.com/news/security/hackers-are-exploiting-arrayos-ag-vpn-flaw-to-plant-webshells/ | [email protected] | Press/Media Coverage |
| https://www.jpcert.or.jp/at/2025/at250024.html | [email protected] | Third Party Advisory |
| https://x.com/ArraySupport/status/1921373397533032590 | [email protected] | Third Party Advisory |
This CVE is in CISA's Known Exploited Vulnerabilities Catalog
Reference CISA's BOD 22-01 and Known Exploited Vulnerabilities Catalog for further guidance and requirements.
| Vulnerability Name | Date Added | Due Date | Required Action |
|---|---|---|---|
| Array Networks ArrayOS AG OS Command Injection Vulnerability | Dec 8, 2025 | Dec 29, 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. |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-78 | Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| arraynetworks arrayos ag | < 9.4.5.9 |
CPE
Remediation
| |
| arraynetworks ag1000 | All versions |
CPE
Remediation
| |
| arraynetworks ag1000t | All versions |
CPE
Remediation
| |
| arraynetworks ag1000v5 | All versions |
CPE
Remediation
| |
| arraynetworks ag1100 | All versions |
CPE
Remediation
| |
| arraynetworks ag1100v5 | All versions |
CPE
Remediation
| |
| arraynetworks ag1150 | All versions |
CPE
Remediation
| |
| arraynetworks ag1200 | All versions |
CPE
Remediation
| |
| arraynetworks ag1200v5 | All versions |
CPE
Remediation
| |
| arraynetworks ag1500 | All versions |
CPE
Remediation
| |
| arraynetworks ag1500fips | All versions |
CPE
Remediation
| |
| arraynetworks ag1500v5 | All versions |
CPE
Remediation
| |
| arraynetworks ag1600 | All versions |
CPE
Remediation
| |
| arraynetworks ag1600v5 | All versions |
CPE
Remediation
| |
| arraynetworks vxag | All versions |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Dec 9, 2025 | Initial Analysis | [email protected] |
| Dec 8, 2025 | CVE Modified | CISA-ADP |
| Dec 5, 2025 | New CVE Received | [email protected] |