CVE-2025-66644Known exploitationNetwork attack vector

Command execution via DesktopDirect URL injection

Published Dec 5, 2025 · Updated Feb 26, 2026

OS command injection in Array Networks ArrayOS AG 9.4.5.8 and earlier allows remote authenticated users to execute arbitrary commands. Public reporting ties URLs containing semicolons to DesktopDirect, but the affected handler and command construction are undisclosed. DesktopDirect must be enabled; observed exploitation installed PHP webshells, created accounts, and enabled internal access.

CVSS severity7.2
High
EPSS probability3.42%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Array Networks ArrayOS AG 9.4.5.8 and earlier allows remote authenticated users to execute arbitrary commands. Public reporting ties URLs containing semicolons to DesktopDirect, but the affected handler and command construction are undisclosed. DesktopDirect must be enabled; observed exploitation installed PHP webshells, created accounts, and enabled internal access.

The record

CVE
CVE-2025-66644
Published
Dec 5, 2025
Updated
Feb 26, 2026
Vendor
Array Networks
Product
ArrayOS AG
Classifications
CWE-78, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 5, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <9.4.5.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Array Networks · ArrayOS AGversion=0 <9.4.5.9

Published CVSS scores

7.2MITRECVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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