CVE-2026-19983

MEDIUM CVSS 4.0: 6.9 EPSS 1.31%
Updated Aug 20, 2026
Parameter Value
CVSS 6.9 (MEDIUM)
Type CWE-77 (Command Injection), CWE-78 (OS Command Injection)
Public PoC No

A vulnerability was detected in GL.iNet A1300, AX1800, AXT1800, MT2500, MT3000, MT6000, X3000 and XE3000 4.8.x. This issue affects some unknown processing of the file /usr/bin/gl_nas_sys of the component NAS Command Service. The manipulation results in os command injection.

The attack may be launched remotely. Upgrading to version 4.9.0 is capable of addressing this issue. It is suggested to upgrade the affected component.

The vendor explains: "After our investigation, we have confirmed that the vulnerability described (...) does indeed exist."

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption

CVSS Vector v4.0