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."
Published: 2026-06-07
Score: 6.9 Medium
EPSS: 1.7% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The vulnerability arises from improper handling of the Password argument in the SET_USER_PWD Handler of the glc component, allowing an attacker to inject shell commands through crafted payloads. This leads to remote code execution on the GL.iNet GL‑MT3000 router. The weakness is rooted in CWE‑74 (Improper Neutralization of Input During Command Injection) and CWE‑77 (Improper Restriction of Commands or Command Interpreters).

Affected Systems

GL.iNet GL‑MT3000 devices running firmware versions up to 4.4.5 are affected. Firmware 4.8.1 and later contain the fix.

Risk and Exploitability

The CVSS base score for this issue is 6.9, reflecting a moderate severity. No EPSS score is available, and the vulnerability is not listed in the CISA KEV catalog. The description confirms that the attack can be initiated remotely, suggesting that an attacker with network or web access to the device could exploit the flaw without additional privileges.

Generated by OpenCVE AI on June 7, 2026 at 05:50 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply GL.iNet GL‑MT3000 firmware version 4.8.1 or later to remove the vulnerability.
  • If firmware upgrade cannot be performed immediately, block remote access to the SET_USER_PWD endpoint or disable the endpoint entirely through firewall rules.
  • Implement a web application firewall or input‑validation layer that rejects payloads containing shell metacharacters such as $(), backticks, or other command‑substitution syntax.

Generated by OpenCVE AI on June 7, 2026 at 05:50 UTC.

Tracking

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Advisories

No advisories yet.

History

Mon, 08 Jun 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Sun, 07 Jun 2026 07:15:00 +0000

Type Values Removed Values Added
First Time appeared Gl-inet gl-mt3000
Vendors & Products Gl-inet gl-mt3000

Sun, 07 Jun 2026 04:00:00 +0000

Type Values Removed Values Added
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."
Title GL.iNet GL-MT3000 SET_USER_PWD glc FUN_0042e200 command injection
First Time appeared Gl-inet
Gl-inet gl-mt3000 Firmware
Weaknesses CWE-74
CWE-77
CPEs cpe:2.3:o:gl-inet:gl-mt3000_firmware:*:*:*:*:*:*:*:*
Vendors & Products Gl-inet
Gl-inet gl-mt3000 Firmware
References
Metrics cvssV2_0

{'score': 7.5, 'vector': 'AV:N/AC:L/Au:N/C:P/I:P/A:P/E:ND/RL:OF/RC:C'}

cvssV3_0

{'score': 7.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C'}

cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X'}

Subscriptions

Gl-inet Gl-mt3000 Gl-mt3000 Firmware
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-06-08T16:33:31.174Z

Reserved: 2026-06-06T10:33:24.201Z

Link: CVE-2026-11452

cve-icon Vulnrichment

Updated: 2026-06-08T14:18:08.775Z

cve-icon NVD

Status : Deferred

Published: 2026-06-07T04:16:29.960

Modified: 2026-06-08T14:57:14.757

Link: CVE-2026-11452

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-07T07:00:08Z

Weaknesses
  • CWE-74

    Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

  • CWE-77

    Improper Neutralization of Special Elements used in a Command ('Command Injection')