Vulnerability · Published Apr 20, 2026 · Assigned by ASUSTOR1
CVE-2026-6644A command injection vulnerability was found in the PPTP VPN Clients on the ADM
Critical 9.4
In plain English
A critical-severity OS command injection in ADM from ASUSTOR Inc.. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.9% (higher than 80% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Official description
A command injection vulnerability was found in the PPTP VPN Clients on the ADM. The vulnerability allows an administrative user to break out of the restricted web environment and execute arbitrary code on the underlying operating system. This occurs due to insufficient validation of user-supplied input before it is passed to a system shell. Successful exploitation allows an attacker to achieve Remote Code Execution (RCE) and fully compromise the system. Affected products and versions include: from ADM 4.1.0 through ADM 4.3.3.RR42 as well as from ADM 5.0.0 through ADM 5.1.2.REO1.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ASUSTOR Inc. | ADM | 4.1.0 – through 4.3.3.RR425.0.0 – through 5.1.2.REO1 |
Weakness: CWE-78 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H