CVE-2025-66644 kev in the critical feed json
Array Networks ArrayOS AG before 9.4.5.9 allows command injection, as exploited in the wild in August through December 2025.
published 2025-12-05 11 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-201500
- cvss
- 7.2
- version 3.1, CNA
- cisa kev
- Exploited
- added 2025-12-08
- epss
- 3.3%
- EPSS 3.3% chance of exploitation in 30 days, percentile 88%
- public exploits
- 0
- none known
Summary
Array Networks ArrayOS AG before 9.4.5.9 allows command injection, as exploited in the wild in August through December 2025.
Patch / fix
cisa 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.
- Array Networks ArrayOS AG 9.4.5.9
Timeline
- Published
- Added to CISA KEV
- CISA SSVC: exploitation active
- CISA patch deadline
Known exploited
- Added
- 11 mo ago
- Patch by
- 2025-12-29 (10 mo ago)
- Ransomware
- Not known
- 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.
- Vendor, product
- Array Networks , ArrayOS AG
- CISA name
- Array Networks ArrayOS AG OS Command Injection Vulnerability
CISA SSVC
- Exploitation
- Active, exploited in the wild
- Automatable
- no
- Technical impact
- total
- Assessed
- 11 mo ago
Exploit prediction
3.33% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Array Networks ArrayOS AG
Classification
- Weakness
-
- CWE-78 Improper Neutralization of Special Elements used in an OS Command
References
-
jpcert.or.jp
/at/2025/at250024.html
third-party-advisory
-
x.com
/ArraySupport/status/1921373397533032590
third-party-advisory
-
bleepingcomputer.com
/news/security/hackers-are-exploiting-arrayos-ag-vpn-flaw-to-plant-webshells/
press/media-coverage
-
cisa.gov
/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-66644
government-resource, us-government-resource
Sources
- CVE List CVE-2025-66644
- NVD CVE-2025-66644
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.