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Home/Vulnerability/CVE-2026-12187

CVE-2026-12187

GL.iNet GL-MT3000 Online Firmware Upgrade one_click_upgrade command injection

Published: Jun 14, 2026Updated: Jun 14, 2026 Sources: CVE List NVD
NVD MITRE
8.8CVSS
HIGH

A security vulnerability has been detected in GL.iNet GL-MT3000 up to 4.4.5. Affected by this vulnerability is an unknown functionality of the file /usr/bin/one_click_upgrade of the component Online Firmware Upgrade Handler. Such manipulation leads to command injection. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 4.7 addresses this issue. Upgrading the affected component is advised. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High

Weaknesses

CWE-74CWE-77

Affected Products

GL-MT3000
GL.iNet
Networking Infrastructure / router-switch
gl.inetcommercialSGNetworking Infrastructureaka gl-inet

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://fw.gl-inet.com/firmware/mt3000/release/mt3000-4.8.1-0819-1755615825.tar
fw.gl-inet.com
https://github.com/StrTzz123/iot_vul/tree/main/GL-iNet/MT3000/4.4.5/upgrade_online_url
github.com
https://vuldb.com/cve/CVE-2026-12187
vuldb.com
and 3 more references View all →

Timeline

Published
Jun 14, 2026
Last Updated
Jun 14, 2026

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