CVE-2026-11452: Command Injection in GL.iNet GL-MT3000
A vulnerability has been found in GL.iNet GL-MT3000 up to 4.4.5. Affected is the function FUN_0042e200 of the file /cgi-bin/glc of the component SET_USER_PWD Handler. The manipulation of the argument Password leads to command injection. The attack can be initiated remotely. Upgrading to version 4.8.1 is able to address this issue. The affected component should be upgraded. The vendor explains: " The current code escapes single quotes in the password parameter and handles it inside a shell single‑quote context. The payloads in the report, which rely on $() or backticks to trigger command substitution, are not executed under the current code path. We tested on a GL‑MT3000 device running firmware 4.8.1 using similar payloads, and no command‑execution marker file was created."
AI Analysis
Technical Summary
This vulnerability affects GL.iNet GL-MT3000 devices running firmware versions up to 4.4.5. The flaw is located in the function FUN_0042e200 of the /cgi-bin/glc file, specifically in the SET_USER_PWD Handler component. An attacker can remotely manipulate the Password parameter to perform command injection. The vendor confirmed that in version 4.8.1, the code escapes single quotes in the password parameter and handles it within a shell single-quote context, effectively mitigating command substitution attempts using $() or backticks. Testing on version 4.8.1 showed no execution of command injection payloads.
Potential Impact
Successful exploitation allows an unauthenticated remote attacker to execute arbitrary commands on the affected device via the Password parameter in the SET_USER_PWD Handler. This can lead to unauthorized control over the device. The CVSS 4.0 base score is 6.9 (medium severity), reflecting network attack vector, low complexity, no privileges or user interaction required, and limited confidentiality, integrity, and availability impacts.
Mitigation Recommendations
Upgrade affected GL.iNet GL-MT3000 devices to firmware version 4.8.1 or later, which includes fixes that properly escape input and prevent command injection. No other mitigation steps are indicated by the vendor. Patch status is confirmed by the vendor's testing and advisory.
CVE-2026-11452: Command Injection in GL.iNet GL-MT3000
Description
A vulnerability has been found in GL.iNet GL-MT3000 up to 4.4.5. Affected is the function FUN_0042e200 of the file /cgi-bin/glc of the component SET_USER_PWD Handler. The manipulation of the argument Password leads to command injection. The attack can be initiated remotely. Upgrading to version 4.8.1 is able to address this issue. The affected component should be upgraded. The vendor explains: " The current code escapes single quotes in the password parameter and handles it inside a shell single‑quote context. The payloads in the report, which rely on $() or backticks to trigger command substitution, are not executed under the current code path. We tested on a GL‑MT3000 device running firmware 4.8.1 using similar payloads, and no command‑execution marker file was created."
CVSS v4.0
Score 6.9medium
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects GL.iNet GL-MT3000 devices running firmware versions up to 4.4.5. The flaw is located in the function FUN_0042e200 of the /cgi-bin/glc file, specifically in the SET_USER_PWD Handler component. An attacker can remotely manipulate the Password parameter to perform command injection. The vendor confirmed that in version 4.8.1, the code escapes single quotes in the password parameter and handles it within a shell single-quote context, effectively mitigating command substitution attempts using $() or backticks. Testing on version 4.8.1 showed no execution of command injection payloads.
Potential Impact
Successful exploitation allows an unauthenticated remote attacker to execute arbitrary commands on the affected device via the Password parameter in the SET_USER_PWD Handler. This can lead to unauthorized control over the device. The CVSS 4.0 base score is 6.9 (medium severity), reflecting network attack vector, low complexity, no privileges or user interaction required, and limited confidentiality, integrity, and availability impacts.
Mitigation Recommendations
Upgrade affected GL.iNet GL-MT3000 devices to firmware version 4.8.1 or later, which includes fixes that properly escape input and prevent command injection. No other mitigation steps are indicated by the vendor. Patch status is confirmed by the vendor's testing and advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-06-06T10:33:24.201Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a24eda5e29bf47b50792da5
Added to database: 06/07/2026, 04:03:49 UTC
Last enriched: 06/14/2026, 09:38:58 UTC
Last updated: 07/21/2026, 20:57:06 UTC
Views: 132
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