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CVE-2026-12187

HIGH Exploitation: PoC
8.8
CVSS 3.1
Description
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.

Metadata

CVE ID
CVE-2026-12187
State
PUBLISHED
Assigner
VulDB
Reserved
2026-06-14 06:30 UTC
Published
2026-06-14 22:00 UTC
Last updated
2026-06-15 12:54 UTC
Primary CWE
CWE-77
Command Injection
Vendor / Product
GL.iNet / GL-MT3000
Sources
cve.org  ·  NVD

Severity & Metrics

8.8 HIGH CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
SSVC — CISA Coordinator
Exploitation
PoC
Automatable
no
Tech. Impact
total
Affected products (1)
VendorProductPlatformVersions
GL.iNet GL-MT3000 — 4.4.0, 4.4.1, 4.4.2, 4.4.3 …
Weakness (CWE)
CWESourceDescription
CWE-74 cna Injection
CWE-77 cna Command Injection
CVSS scores (4)
ScoreSeverityVersionSourceVector
9.0 N/D 2.0 cna AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:OF/RC:C
8.8 HIGH 3.1 cna CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
8.8 HIGH 3.0 cna CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
8.7 HIGH 4.0 cna CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
References (6)
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