CVE-2026-19983
GL.iNet XE3000 NAS Command Service gl_nas_sys os command injection
- State
- Published
- Severity
- 6.9 Medium
- Published
- Aug 17, 2026
- Updated
- Aug 17, 2026
- Reserved
- Aug 16, 2026
Description
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."
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:X | VulDB |
| 3.1 | 8.3 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L/E:X/RL:O/RC:C | VulDB |
| 3.0 | 8.3 High | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L/E:X/RL:O/RC:C | VulDB |
| 2.0 | 7.5 High | AV:N/AC:L/Au:N/C:P/I:P/A:P/E:ND/RL:OF/RC:C | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
A1300GL.iNet |
|
AX1800GL.iNet |
|
AXT1800GL.iNet |
|
MT2500GL.iNet |
|
MT3000GL.iNet |
|
MT6000GL.iNet |
|
X3000GL.iNet |
|
XE3000GL.iNet |
|
References
- VDB-391165 | GL.iNet XE3000 NAS Command Service gl_nas_sys os command injectionvdb-entry
- VDB-391165 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- CVE-2026-19983 | CVE Analysis and Reportthird-party-advisory
- Submit #873919 | GL.iNet Router 4.8.x RCEthird-party-advisory
- https://github.com/gl-inet/CVE-issues/blob/main/4.0.0/NAS%20Host-header%20bypass%20to%20unauthenticated%20root%20RCE.mdrelated
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