Critical severity · published Dec 5, 2025
CVE-2025-66644
Array Networks ArrayOS AG OS Command Injection Vulnerability
In wildKEV
9.8
CVSS
3.4%
EPSS
Yes
On KEV
Description
Array Networks ArrayOS AG before 9.4.5.9 allows command injection, as exploited in the wild in August through December 2025.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.4% · higher than 89% of CVEs
Exploited in the wildYes
CISA KEVListed Dec 8, 2025
Federal remediation dueDec 29, 2025
Ransomware campaign useNot known
Affected products
Which versions
AA
ArrayOS AG · Array Networks
before 9.4.5.9 · source: vendor, NVD, KEV
In the news
ThreatIntelHigh
[CISA KEV] CVE-2025-66644: Array Networks ArrayOS AG - 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.
AAArrayOS AGCVE-2025-66644
Dec 8, 2025·CISA KEV
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-66644
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-66644
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
www.jpcert.or.jp
https://www.jpcert.or.jp/at/2025/at250024.html
x.com
https://x.com/ArraySupport/status/1921373397533032590
www.bleepingcomputer.com
https://www.bleepingcomputer.com/news/security/hackers-are-exploiting-arrayos-ag-vpn-flaw-to-plant-webshells/