CVE-2026-12187 (GCVE-0-2026-12187)

Vulnerability from cvelistv5 – Published: 2026-06-14 22:00 – Updated: 2026-06-14 22:00
VLAI
Title
GL.iNet GL-MT3000 Online Firmware Upgrade one_click_upgrade command injection
Summary
A security vulnerability has been detected in GL.iNet GL-MT3000 up to 4.4.5. Affected by this vulnerability is an unknown functionality of the file /usr/bin/one_click_upgrade of the component Online Firmware Upgrade Handler. Such manipulation leads to command injection. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 4.7 addresses this issue. Upgrading the affected component is advised. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
8.8 (High)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
CWE
Assigner
References
Impacted products
Vendor Product Version
GL.iNet GL-MT3000 Affected: 4.4.0
Affected: 4.4.1
Affected: 4.4.2
Affected: 4.4.3
Affected: 4.4.4
Affected: 4.4.5
Unaffected: 4.7
    cpe:2.3:o:gl-inet:gl-mt3000_firmware:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
strforexc (VulDB User) VulDB CNA Team
Show details on NVD website
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:o:gl-inet:gl-mt3000_firmware:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "Online Firmware Upgrade Handler"
          ],
          "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"
            },
            {
              "status": "unaffected",
              "version": "4.7"
            }
          ]
        }
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          "type": "reporter",
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        }
      ],
      "metrics": [
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      "problemTypes": [
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              "description": "Command Injection",
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      "providerMetadata": {
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        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-370833 | GL.iNet GL-MT3000 Online Firmware Upgrade one_click_upgrade command injection",
          "tags": [
            "vdb-entry"
          ],
          "url": "https://vuldb.com/vuln/370833"
        },
        {
          "name": "VDB-370833 | CTI Indicators (IOB, IOC, TTP, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/370833/cti"
        },
        {
          "name": "CVE-2026-12187 | CVE Analysis and Report",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/cve/CVE-2026-12187"
        },
        {
          "name": "Submit #815654 | GL.iNet GL-MT3000 4.4.5 Command Injection",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/815654"
        },
        {
          "tags": [
            "exploit",
            "patch"
          ],
          "url": "https://github.com/StrTzz123/iot_vul/tree/main/GL-iNet/MT3000/4.4.5/upgrade_online_url"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://fw.gl-inet.com/firmware/mt3000/release/mt3000-4.8.1-0819-1755615825.tar"
        }
      ],
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          "lang": "en",
          "time": "2026-06-14T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-06-14T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-06-14T08:35:18.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "GL.iNet GL-MT3000 Online Firmware Upgrade one_click_upgrade command injection"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-12187",
    "datePublished": "2026-06-14T22:00:09.360Z",
    "dateReserved": "2026-06-14T06:30:11.012Z",
    "dateUpdated": "2026-06-14T22:00:09.360Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-12187\",\"sourceIdentifier\":\"cna@vuldb.com\",\"published\":\"2026-06-14T23:16:34.853\",\"lastModified\":\"2026-06-14T23:16:34.853\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A security vulnerability has been detected in GL.iNet GL-MT3000 up to 4.4.5. Affected by this vulnerability is an unknown functionality of the file /usr/bin/one_click_upgrade of the component Online Firmware Upgrade Handler. Such manipulation leads to command injection. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 4.7 addresses this issue. Upgrading the affected component is advised. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.\"}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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\",\"baseScore\":7.4,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"HIGH\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"PROOF_OF_CONCEPT\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"cvssMetricV31\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":8.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:S/C:C/I:C/A:C\",\"baseScore\":9.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"COMPLETE\",\"integrityImpact\":\"COMPLETE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":8.0,\"impactScore\":10.0,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-74\"},{\"lang\":\"en\",\"value\":\"CWE-77\"}]}],\"references\":[{\"url\":\"https://fw.gl-inet.com/firmware/mt3000/release/mt3000-4.8.1-0819-1755615825.tar\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://github.com/StrTzz123/iot_vul/tree/main/GL-iNet/MT3000/4.4.5/upgrade_online_url\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/cve/CVE-2026-12187\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/submit/815654\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/vuln/370833\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/vuln/370833/cti\",\"source\":\"cna@vuldb.com\"}]}}"
  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.