Critical 9.8Published Aug 4, 2026

CVE-2026-18686GL.iNet GL-MT3000 nas-web RPC Wrapper glc nas-web.add_user command injection

Updated under an hour ago (2026-10-19 11:10 UTC)

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It affects GL.iNet GL-MT3000. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for GL.iNet GL-MT3000

Exploited in the last 30 days

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.

CVSS: 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
Weakness (CWE): CWE-77, CWE-74
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Aug 4, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

GL.iNet GL-MT3000 gl-inet:gl-mt3000_firmware	4.4.0; 4.4.1; 4.4.2; 4.4.3; 4.4.4; 4.4.5	CNA record

References

https://vuldb.com/vuln/385612vdb-entry, technical-description
https://vuldb.com/vuln/385612/ctisignature, permissions-required
https://vuldb.com/cve/CVE-2026-18686third-party-advisory
https://vuldb.com/submit/856139third-party-advisory
https://github.com/coconut652-7/IOT_Vul_Public/tree/main/Glinet/MT3000/nas-web/ADD_USER_ADD_SHAREexploit

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.