CVE-2026-18684

Description

A weakness has been identified in GL.iNet GL-MT3000 up to 4.4.5. This issue affects the function remove_profile of the file /cgi-bin/glc of the component modem.so. This manipulation causes command injection. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.

Overview

State: PUBLISHED
Assigner (CNA): VulDB
CVSS severity: CRITICAL
CVSS score: 9.3 / 10
CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Effective score: 9.3 / 10 CRITICAL source: CNA overview
CWE(s): CWE-77, CWE-74
Reserved: 2026-08-03
Published: 2026-08-03 22:45 UTC
Last updated: 2026-08-03 22:45 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/18xxx/CVE-2026-18684.json
Linked Threat: CVE-2026-18684 — GL.iNet GL-MT3000 modem.so glc remove_profile command injection

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-08-03 23:16:45 UTC
NVD last modified: 2026-08-04 17:16:47 UTC
NVD CVSS v3.1: 9.8 / 10 CRITICAL source: cna@vuldb.com
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability subscore: 3.9 / 10
Impact subscore: 5.9 / 10
EPSS score: 0.0203 (probability of exploitation in next 30 days)
EPSS percentile: 79.12% vs all CVEs — higher = more likely to be exploited, as of 2026-08-04

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-52520
Assigner: VulDB
Published: Aug 3, 2026, 10:45:10 PM
Updated: Aug 4, 2026, 3:41:00 PM
EUVD base score (CVSS 4.0): 9.3 / 10
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
EUVD-reported EPSS: 0.0000
Vendors: GL.iNet
Products: GL-MT3000 (4.4.4)

GL-MT3000 (4.4.2)

GL-MT3000 (4.4.5)

GL-MT3000 (4.4.0)

GL-MT3000 (4.4.1)

GL-MT3000 (4.4.3)
Aliases: GHSA-j682-xx2h-hv5m

ENISA description: A weakness has been identified in GL.iNet GL-MT3000 up to 4.4.5. This issue affects the function remove_profile of the file /cgi-bin/glc of the component modem.so. This manipulation causes command injection. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.

EUVD references (5)

Affected products (1)

Vendor	Product	Versions	Platforms
GL.iNet	GL-MT3000	`4.4.0` (affected), `4.4.1` (affected), `4.4.2` (affected), `4.4.3` (affected), `4.4.4` (affected), `4.4.5` (affected)	—

Vendor references (5)

References embedded in the original CVE record by the assigning CNA.

VDB-385610 | GL.iNet GL-MT3000 modem.so glc remove_profile command injection vdb-entrytechnical-description
VDB-385610 | CTI Indicators (IOB, IOC, TTP, IOA) signaturepermissions-required
CVE-2026-18684 | CVE Analysis and Report third-party-advisory
Submit #851581 | GL.iNet GL-MT3000 4.4.5 Command Injection third-party-advisory
https://github.com/StrTzz123/iot_vul/tree/main/GL-iNet/MT3000/4.4.5/modem_remove_profile_glc_rce exploit

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (5)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://github.com/StrTzz123/iot_vul/tree/main/GL-iNet/MT3000/4.4.5/modem_remove_profile_glc_rce cna@vuldb.com
https://vuldb.com/cve/CVE-2026-18684 cna@vuldb.com
https://vuldb.com/submit/851581 cna@vuldb.com
https://vuldb.com/vuln/385610 cna@vuldb.com
https://vuldb.com/vuln/385610/cti cna@vuldb.com

Remediations (10)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

CVE-2026-50684 - Vulnerability Details - OpenCVE

web:app.opencve.io

The flaw affects Microsoft Windows 10 releases 1607 and 1809, as well as Windows Server 2012 through Windows Server 2025, including both full‑feature and Server Core installations. All listed Windows releases host AD‑FS components that are vulnerable.

2026-08-04 20:26 UTC
Microsoft patches 622 flaws, restricts Kerberos RC4 | Cybernews

web:cybernews.com

Microsoft's July 2026 Patch Tuesday fixes a record 622 vulnerabilities and begins mandatory Kerberos RC4 enforcement, marking one of Windows' biggest security updates.

2026-08-04 20:26 UTC
Exchange Emergency Mitigation (EM) service - learn.microsoft.com

web:learn.microsoft.com

The EM service checks the issuer, the Extended Key Usage, and the certificate chain. After successful validation, the EM service applies the mitigation . Each mitigation is a temporary, interim fix until you can apply the Security Update that fixes the vulnerability. The EM service isn't a replacement for Exchange SUs.

2026-08-04 20:26 UTC
Security Update Guide - Microsoft

web:portal.msrc.microsoft.com

The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

2026-08-04 20:26 UTC
Description of the security update for Office Online Server: July 14 ...

web:support.microsoft.com

Summary This security update resolves Microsoft Excel remote code execution vulnerability and Microsoft Excel Information Disclosure vulnerability. To learn more about the vulnerabilities, see the following security advisories: Microsoft Common Vulnerabilities and Exposures CVE - 2026 -55058 Microsoft Common Vulnerabilities and Exposures CVE - 2026 -55141 Microsoft Common Vulnerabilities and ...

2026-08-04 20:26 UTC
Addressing Exchange Server May 2026 vulnerability CVE-2026-42897 ...

web:techcommunity.microsoft.com

Hi team, Our organization has successfully implemented the recommended mitigation for CVE - 2026 -42897. However, we are currently experiencing the documented known issues within our environment. Could the Exchange team kindly provide a tentative timeline or ETA for a permanent security update that resolves the underlying vulnerability while addressing these known issues? We would greatly ...

2026-08-04 20:26 UTC
Microsoft Patch Tuesday - July 2026 - Lansweeper

web:www.lansweeper.com

The July 2026 edition of Patch Tuesday brings us 576 fixes, with 57 rated as critical. We've listed the most important changes below. Microsoft SharePoint Server Remote Code Execution Vulnerability CVE - 2026 -56164, CVE - 2026 -50522, CVE - 2026 -58644, and CVE - 2026 -55040 make on-premises SharePoint the headline act this month.

2026-08-04 20:26 UTC
Patch Tuesday - July 2026 - Rapid7

web:www.rapid7.com

Microsoft is publishing 622 vulnerabilities on July 2026 Patch Tuesday, including a record-breaking 416 Windows vulnerabilities.

2026-08-04 20:26 UTC
July 2026 Patch Tuesday: Largest Patch Tuesday 569 CVEs - Tenable

web:www.tenable.com

Microsoft patched 569 CVEs in July 2026 , the largest Patch Tuesday release in its history. 56 critical CVEs patched including three zero-day vulnerabilities.

2026-08-04 20:26 UTC
Patch Tuesday July 2026: Security Updates & CVE Analysis

web:zecurit.com

Get the complete breakdown of Microsoft's July 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

2026-08-04 20:26 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-18684.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:o:gl-inet:gl-mt3000_firmware:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "modem.so"
          ],
          "product": "GL-MT3000",
          "vendor": "GL.iNet",
          "versions": [
            {
              "status": "affected",
              "version": "4.4.0"
            },
            {
              "status": "affected",
              "version": "4.4.1"
            },
            {
              "status": "affected",
              "version": "4.4.2"
            },
            {
              "status": "affected",
              "version": "4.4.3"
            },
            {
              "status": "affected",
              "version": "4.4.4"
            },
            {
              "status": "affected",
              "version": "4.4.5"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Strforexc2 (VulDB User)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "VulDB CNA Team"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A weakness has been identified in GL.iNet GL-MT3000 up to 4.4.5. This issue affects the function remove_profile of the file /cgi-bin/glc of the component modem.so. This manipulation causes command injection. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 9.3,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "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",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 10,
            "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:C",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-77",
              "description": "Command Injection",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-74",
              "description": "Injection",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-03T22:45:10.214Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-385610 | GL.iNet GL-MT3000 modem.so glc remove_profile command injection",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/385610"
        },
        {
          "name": "VDB-385610 | CTI Indicators (IOB, IOC, TTP, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/385610/cti"
        },
        {
          "name": "CVE-2026-18684 | CVE Analysis and Report",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/cve/CVE-2026-18684"
        },
        {
          "name": "Submit #851581 | GL.iNet GL-MT3000 4.4.5 Command Injection",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/851581"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://github.com/StrTzz123/iot_vul/tree/main/GL-iNet/MT3000/4.4.5/modem_remove_profile_glc_rce"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-08-03T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-08-03T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-08-03T17:55:15.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "GL.iNet GL-MT3000 modem.so glc remove_profile command injection",
      "x_generator": [
        "VulDB PVTS v202608"
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-18684",
    "datePublished": "2026-08-03T22:45:10.214Z",
    "dateReserved": "2026-08-03T15:49:55.918Z",
    "dateUpdated": "2026-08-03T22:45:10.214Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}