CVE-2026-18686
CRITICALGL.iNet GL-MT3000 nas-web RPC Wrapper glc nas-web.add_user command injection
Title source: cnaDescription
A vulnerability was detected in GL.iNet GL-MT3000 up to 4.4.5. The affected element is the function nas-web.add_user of the file /cgi-bin/glc of the component nas-web RPC Wrapper. Performing a manipulation results in command injection. The attack can be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.
References (5)
Core 5
Core References
Vdb Entry, Technical Description vdb-entry
technical-description
VDB-385612 | GL.iNet GL-MT3000 nas-web RPC Wrapper glc nas-web.add_user command injection
https://vuldb.com/vuln/385612
Signature, Permissions Required signature
permissions-required
VDB-385612 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/385612/cti
Third Party Advisory third-party-advisory
CVE-2026-18686 | CVE Analysis and Report
https://vuldb.com/cve/CVE-2026-18686
Third Party Advisory third-party-advisory
Submit #856139 | GL.iNet MT3000 4.4.5 Command Injection
https://vuldb.com/submit/856139
Scores
CVSS v3
9.8
EPSS
0.0261
EPSS Percentile
83.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
total
Details
CWE
CWE-74
CWE-77
Status
published
Products (6)
GL.iNet/GL-MT3000
4.4.0
GL.iNet/GL-MT3000
4.4.1
GL.iNet/GL-MT3000
4.4.2
GL.iNet/GL-MT3000
4.4.3
GL.iNet/GL-MT3000
4.4.4
GL.iNet/GL-MT3000
4.4.5
Published
Aug 04, 2026
Tracked Since
Aug 04, 2026