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Vulnerabilities

Vulnerability · CVE-2025-66644

Array Networks ArrayOS AG OS Command Injection Vulnerability

Published Dec 5, 2025 · catalog updated Jun 17, 2026 · Array Networks ArrayOS AG

Patch now

CVE-2025-66644 is in the CISA known-exploited catalog, due Dec 29, 2025. Confirm Array Networks ArrayOS AG against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
Critical9.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
3.42%
Remediation
Remediation guidance
Affected products
cpe arraynetworks/arrayos ag · vendor Array Networks ArrayOS AG

Array Networks ArrayOS AG contains an OS command injection vulnerability that could allow an attacker to execute arbitrary commands.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe arraynetworks/arrayos agversion unspecified
  • vendor Array Networks ArrayOS AGversion unspecified

How to fix CVE-2025-66644

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-66644 is in the CISA known-exploited catalog, due Dec 29, 2025. Confirm Array Networks ArrayOS AG against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

What should an analyst verify?

CWE-78: OS Command Injection. EPSS 3.42%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Dec 5, 2025 · Catalog

    Detected

    Array Networks ArrayOS AG contains an OS command injection vulnerability that could allow an attacker to execute arbitrary commands.

  2. Dec 8, 2025 · CISA KEV

    Known exploited

    Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

  3. Dec 29, 2025 · CISA KEV

    Remediation due

    Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

  4. Jun 17, 2026 · Catalog

    Updated

    Array Networks ArrayOS AG contains an OS command injection vulnerability that could allow an attacker to execute arbitrary commands.

Sources

  • CISA KEVConfirmed exploitationCVE-2025-66644

    Array Networks ArrayOS AG contains an OS command injection vulnerability that could allow an attacker to execute arbitrary commands.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2025-66644

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-66644

    30-day exploitation probability 3.4%

    first.org
  • NIST NVDVulnerability recordCVE-2025-66644

    Array Networks ArrayOS AG before 9.4.5.9 allows command injection, as exploited in the wild in August through December 2025.

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2025-66644

    Array Networks ArrayOS AG contains an OS command injection vulnerability that could allow an attacker to execute arbitrary commands.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.