CVE-2026-6644: CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection') in ASUSTOR Inc. ADM
CVE-2026-6644 is a critical command injection vulnerability in the PPTP VPN Clients on ASUSTOR Inc. 's ADM operating system. It allows an administrative user to escape the restricted web environment and execute arbitrary code on the underlying OS due to insufficient input validation before passing data to the system shell. Affected ADM versions range from 4. 1. 0 through 4. 3. 3. RR42 and 5. 0.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-6644) involves improper neutralization of special elements used in an OS command (CWE-78) within the PPTP VPN Clients on ASUSTOR ADM. An administrative user can supply crafted input that is insufficiently validated before being passed to a system shell, enabling command injection. This leads to remote code execution with high impact on confidentiality, integrity, and availability. The affected ADM versions include 4.1.0 through 4.3.3.RR42 and 5.0.0 through 5.1.2.REO1. The CVSS 4.0 base score is 9.4, reflecting critical severity with network attack vector, low attack complexity, no user interaction, and high privileges required.
Potential Impact
Successful exploitation allows an administrative user to execute arbitrary commands on the underlying operating system, resulting in full system compromise. This impacts confidentiality, integrity, and availability of the affected ADM device. The vulnerability enables remote code execution, which can lead to complete control over the system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict administrative access to trusted users only and avoid exposing the PPTP VPN Clients interface to untrusted networks. Monitor vendor communications for updates on patches or temporary mitigations.
CVE-2026-6644: CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection') in ASUSTOR Inc. ADM
Description
CVE-2026-6644 is a critical command injection vulnerability in the PPTP VPN Clients on ASUSTOR Inc. 's ADM operating system. It allows an administrative user to escape the restricted web environment and execute arbitrary code on the underlying OS due to insufficient input validation before passing data to the system shell. Affected ADM versions range from 4. 1. 0 through 4. 3. 3. RR42 and 5. 0.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-6644) involves improper neutralization of special elements used in an OS command (CWE-78) within the PPTP VPN Clients on ASUSTOR ADM. An administrative user can supply crafted input that is insufficiently validated before being passed to a system shell, enabling command injection. This leads to remote code execution with high impact on confidentiality, integrity, and availability. The affected ADM versions include 4.1.0 through 4.3.3.RR42 and 5.0.0 through 5.1.2.REO1. The CVSS 4.0 base score is 9.4, reflecting critical severity with network attack vector, low attack complexity, no user interaction, and high privileges required.
Potential Impact
Successful exploitation allows an administrative user to execute arbitrary commands on the underlying operating system, resulting in full system compromise. This impacts confidentiality, integrity, and availability of the affected ADM device. The vulnerability enables remote code execution, which can lead to complete control over the system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict administrative access to trusted users only and avoid exposing the PPTP VPN Clients interface to untrusted networks. Monitor vendor communications for updates on patches or temporary mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ASUSTOR1
- Date Reserved
- 2026-04-20T04:06:46.522Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69e5cf3219fe3cd2cda1169c
Added to database: 4/20/2026, 7:01:06 AM
Last enriched: 4/20/2026, 7:16:04 AM
Last updated: 4/20/2026, 9:33:20 AM
Views: 11
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