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CVE-2025-66644

75
FAUCET Score

CVE-2025-66644 is a critical command injection vulnerability (CWE-78) affecting Array Networks ArrayOS AG before version 9.4.5.9. This flaw allows unauthenticated attackers to execute arbitrary commands remotely with low attack complexity, leading to complete compromise of confidentiality, integrity, and availability. The vulnerability has a CVSS score of 9.8 (Critical) and is actively exploited in the wild, as confirmed by its inclusion in the CISA KEV catalog. Despite active exploitation, no public exploit code is currently available, though it has garnered significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0, < 9.4.5.9CPE match
cpe:2.3:o:arraynetworks:arrayos_ag:*:*:*:*:*:*:*:*
< 9.4.5.9CPE matchmatch criteria
cpe:2.3:o:arraynetworks:arrayos_ag:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.2HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.17%
Probability of exploitation in next 30 days
EPSS Percentile
86.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Dec 8, 2025
This CVE's current EPSS score of 0.0317 is in the 78th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
bleepingcomputer.com / news/security/hackers-are-exploiting-arrayos-ag-vpn-flaw-to-plant-webshells
Press/Media Coverage
jpcert.or.jp / at/2025/at250024.html
Third Party Advisory
x.com / ArraySupport/status/1921373397533032590
Third Party Advisory