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Vulnerability · Published Aug 4, 2026 · Assigned by VulDB

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

Critical 9.8

In plain English

A critical-severity command injection in GL-MT3000 from GL.iNet. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 4.7% (higher than 92% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)4.7%top 8.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

VendorProductVersions
GL.iNet GL-MT3000 4.4.04.4.14.4.24.4.34.4.44.4.5

Weakness: CWE-77, CWE-74 · Vector: 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

References