TI-2026-09878 Aliases CVE-2026-11449 GHSA-w9mf-f5g7-vfhw

GL.iNet GL-MT3000 LuCI JSON-RPC rpc rpc_sys command injection

MEDIUM 57CWE-74Published 2026-06-07 · Updated 2026-06-09

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: Low · Low · Low
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-77.

Summary

A security vulnerability has been detected in GL.iNet GL-MT3000 4.4.5. The impacted element is the function rpc_sys of the file /cgi-bin/luci/rpc of the component LuCI JSON-RPC Interface. Such manipulation leads to command injection. The attack may be performed from remote. Upgrading to version 4.8.1 is sufficient to resolve this issue. Upgrading the affected component is advised. The vendor confirms: "The issue discovered by the vulnerability researcher on older firmware versions(4.4.5) has actually been fixed and mitigated in the new version. According to the latest firmware fixes, by default, firmware versions after 4.7.13 do not install LuCI, so this vulnerability cannot be exploited."

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.01212 68th percentileScored 2026-11-07

Fix Fixed GL-MT3000 (GL.iNet): 4.8.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
GL.iNet	GL-MT3000	4.4.5	4.8.1	Patch available	CNA

GL-MT3000 VendorGL.iNet Affected 4.4.5 Fixed in 4.8.1 Patch available CNA

CPE names CNA · 1

CPE	Versions	Role	Vendor
cpe:2.3:o:gl-inet:gl-mt3000_firmware::::::::	—	—	GL.iNet

cpe:2.3:o:gl-inet:gl-mt3000_firmware:*:*:*:*:*:*:*:* Versions — — ·GL.iNet

Remediation

Fix · CNA GL-MT3000 (GL.iNet) Fixed in 4.8.1

Timeline

2026-10-02 Threatist record created from CVE-2026-11449
2026-10-03 Alias added: GHSA-w9mf-f5g7-vfhw

References

Patch 1

https://fw.gl-inet.com/firmware/mt3000/release/mt3000-4.8.1-0819-1755615825.tar

Other 1

https://github.com/StrTzz123/iot_vul/tree/main/GL-iNet/MT3000/4.4.5/luci_rpc_sys_exec_rce

TI-2026-21387 GL-iNet GL-AR300M16 v4.3.11 was discovered to contain a command injection vulnerability… CVSS 3.1CRITICAL 9.8
TI-2024-26219 GL-iNet products AR750/AR750S/AR300M/AR300M16/MT300N-V2/B1300/MT1300/SFT1200/X750… CVSS 3.1CRITICAL 9.8
TI-2023-27815 An issue was discovered on GL.iNet devices before version 4.5.0. CVSS 3.1CRITICAL 9.8
TI-2023-15082 An issue was discovered on GL.iNet devices before 3.216. CVSS 3.1CRITICAL 9.8
TI-2023-14015 GL.iNET MT3000 4.1.0 Release 2 is vulnerable to OS Command Injection via /usr/lib/oui-httpd/rpc/logread. CVSS 3.1CRITICAL 9.8
TI-2026-15312 GL.iNet GL-MT3000 nas-web RPC Wrapper glc nas-web.add_user command injection CVSS 4.0CRITICAL 9.3

See all 92 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences