Vulnerability-Lookup

GHSA-3GR2-27FR-G5V9

Vulnerability from github – Published: 2026-08-17 06:33 – Updated: 2026-08-17 06:33

Details

A security vulnerability has been detected in GL.iNet BE9300 and MT6000 4.8.x. This vulnerability affects unknown code of the component Firewall-management RPC. The manipulation of the argument dest_port/dest_ip leads to os command injection. The attack may be initiated remotely. Upgrading to version 4.9.0 is able to resolve this issue. The affected component should be upgraded. The vendor explains: "After our investigation, we have confirmed that the vulnerability described (...) does indeed exist."

Severity

7.4 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L

5.3 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L

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{
  "affected": [],
  "aliases": [
    "CVE-2026-19982"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-77"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-17T05:17:09Z",
    "severity": "MODERATE"
  },
  "details": "A security vulnerability has been detected in GL.iNet BE9300 and MT6000 4.8.x. This vulnerability affects unknown code of the component Firewall-management RPC. The manipulation of the argument dest_port/dest_ip leads to os command injection. The attack may be initiated remotely. Upgrading to version 4.9.0 is able to resolve this issue. The affected component should be upgraded. The vendor explains: \"After our investigation, we have confirmed that the vulnerability described (...) does indeed exist.\"",
  "id": "GHSA-3gr2-27fr-g5v9",
  "modified": "2026-08-17T06:33:56Z",
  "published": "2026-08-17T06:33:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19982"
    },
    {
      "type": "WEB",
      "url": "https://github.com/gl-inet/CVE-issues/blob/main/4.0.0/Firewall%20Cleanup%20RCE.md"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-19982"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/873918"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/391164"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/391164/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:X/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",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-19982 (GCVE-0-2026-19982)

Vulnerability from cvelistv5 – Published: 2026-08-17 04:15 – Updated: 2026-08-18 14:24

Title

GL.iNet BE9300/MT6000 Firewall-management RPC os command injection

Summary

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:X

7.4 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L/E:X/RL:O/RC:C

7.4 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L/E:X/RL:O/RC:C

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-18 14:23 UTC

CWE

CWE-78 - OS Command Injection
CWE-77 - Command Injection

Assigner

VulDB mitre root

References

5 references

URL	Tags
https://vuldb.com/vuln/391164	vdb-entrytechnical-description
https://vuldb.com/vuln/391164/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-19982	third-party-advisory
https://vuldb.com/submit/873918	third-party-advisory
https://github.com/gl-inet/CVE-issues/blob/main/4…	related

Impacted products

2 products

Vendor	Product	Version
GL.iNet	BE9300	Affected: 4.8.* Unaffected: 4.9.0 cpe:2.3:a:gl.inet:be9300::::::::
GL.iNet	MT6000	Affected: 4.8.* Unaffected: 4.9.0 cpe:2.3:a:gl.inet:mt6000::::::::

Credits

GLiNet (VulDB User) VulDB CNA Team

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
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        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-19982",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-18T14:23:42.798636Z",
                "version": "2.0.3"
              },
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        "providerMetadata": {
          "dateUpdated": "2026-08-18T14:24:10.126Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:gl.inet:be9300:*:*:*:*:*:*:*:*"
          ],
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            "Firewall-management RPC"
          ],
          "product": "BE9300",
          "vendor": "GL.iNet",
          "versions": [
            {
              "status": "affected",
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            },
            {
              "status": "unaffected",
              "version": "4.9.0"
            }
          ]
        },
        {
          "cpes": [
            "cpe:2.3:a:gl.inet:mt6000:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "Firewall-management RPC"
          ],
          "product": "MT6000",
          "vendor": "GL.iNet",
          "versions": [
            {
              "status": "affected",
              "version": "4.8.*"
            },
            {
              "status": "unaffected",
              "version": "4.9.0"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "GLiNet (VulDB User)"
        },
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          "type": "coordinator",
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        }
      ],
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        }
      ],
      "metrics": [
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            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:X",
            "version": "4.0"
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        },
        {
          "cvssV3_1": {
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        },
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        },
        {
          "name": "VDB-391164 | CTI Indicators (IOB, IOC, TTP, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/391164/cti"
        },
        {
          "name": "CVE-2026-19982 | CVE Analysis and Report",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/cve/CVE-2026-19982"
        },
        {
          "name": "Submit #873918 | GL.iNet Router 4.8.x RCE",
          "tags": [
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        },
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          "value": "VulDB entry created"
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          "value": "VulDB entry last update"
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}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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GHSA-3GR2-27FR-G5V9

CVE-2026-19982 (GCVE-0-2026-19982)

Tags

Sightings

Nomenclature

Related by attack behaviour