Eine Schwachstelle wurde im GL.iNet GL-MT3000 bis Version 4.4.5 festgestellt (CVE-2026-18686)

Weakness-Klassen (CWE)

• CWE-77Class

  Improper Neutralization of Special Elements used in a Command ('Command Injection')

  The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

  cwe.mitre.org →

• CWE-74Class

  Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

  The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

  cwe.mitre.org →

Re-Analyse & Statuswechsel

Chronologie der NVD-Audit-Events für diese CVE — Reanalyses, CVSS-Updates, CPE-Diffs.

1. CVE Modified2026-08-04 16:16 UTC· 134c704f-9b21-4f2e-91b3-4a467353bcc0
   • SSVC: {"id":"CVE-2026-18686","role":"CISA Coordinator","options":[{"exploitation":"poc"},{"automatable":"yes"},{"technicalI…
2. New CVE Received2026-08-04 00:16 UTC· cna@vuldb.com
   • Affected: GL-MT3000
   • 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.
   • CVSS V4.0: AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
   • CVSS V3.1: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Quellen & Referenzen

• https://vuldb.com/vuln/385612
  vdb-entrytechnical-description
• https://vuldb.com/vuln/385612/cti
  signaturepermissions-required
• https://vuldb.com/cve/CVE-2026-18686
  third-party-advisory
• https://vuldb.com/submit/856139
  third-party-advisory
• https://github.com/coconut652-7/IOT_Vul_Public/tree/main/Glinet/MT3000/nas-web/ADD_USER_ADD_SHARE
  exploit

Verknüpfte Empfehlungen

• sans-atrisk-mail2026-08-13 00:00 UTC
  @RISK®: The Consensus Security Vulnerability Alert: Vol. 26, Num. 31
• sans-atrisk-mail2026-08-06 00:00 UTC
  @RISK®: The Consensus Security Vulnerability Alert: Vol. 26, Num. 30