CVE-2025-66644
Critical 9.8 Exploited in the wild (KEV)
Confirmed active exploitation — CISA KEV catalog
- Name
- Array Networks ArrayOS AG OS Command Injection Vulnerability
- Added to catalog
- Remediation due date (US federal)
- 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.
Description
Array Networks ArrayOS AG before 9.4.5.9 allows command injection, as exploited in the wild in August through December 2025.
Metrics
- CVSS 3.1
-
9.8 (CRITICAL)
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 3% (percentile: 89) as of 1 November 2026
- CWE
- CWE-78
Affected products
arraynetworks: arrayos ag; arraynetworks: ag1000; arraynetworks: ag1000t; arraynetworks: ag1000v5; arraynetworks: ag1100; arraynetworks: ag1100v5; arraynetworks: ag1150; arraynetworks: ag1200; arraynetworks: ag1200v5; arraynetworks: ag1500; arraynetworks: ag1500fips; arraynetworks: ag1500v5; arraynetworks: ag1600; arraynetworks: ag1600v5; arraynetworks: vxag
References
- https://www.bleepingcomputer.com/news/security/hackers-are-exploiting-arrayos-a… Press/Media Coverage
- https://www.jpcert.or.jp/at/2025/at250024.html Third Party Advisory
- https://x.com/ArraySupport/status/1921373397533032590 Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025… US Government Resource