GL.iNet GL-MT3000 4.4.5 LuCI JSON-RPC Interface /cgi-bin/luci/rpc rpc_sys command injection

Summaryinfo

A vulnerability, which was classified as critical, has been found in GL.iNet GL-MT3000 4.4.5. This affects the function rpc_sys of the file /cgi-bin/luci/rpc of the component LuCI JSON-RPC Interface. Performing a manipulation results in command injection. This vulnerability is cataloged as CVE-2026-11449. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component. 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."

Detailsinfo

A vulnerability was found in GL.iNet GL-MT3000 4.4.5. It has been classified as critical. This affects the function rpc_sys of the file /cgi-bin/luci/rpc of the component LuCI JSON-RPC Interface. The manipulation with an unknown input leads to a command injection vulnerability. CWE is classifying the issue as CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-11449. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1202 for this issue.

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."

Upgrading to version 4.8.1 eliminates this vulnerability. The upgrade is hosted for download at fw.gl-inet.com.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• GL.iNet

Name

• GL-MT3000

Version

• 4.4.5

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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Threat Intelligenceinfo

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Submitinfo

Accepted

• Submit #825385: GL.iNet GL-MT3000 4.4.5 Command Injection (by strforexc)

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