CVE-2026-6138 (GCVE-0-2026-6138)
Vulnerability from cvelistv5
Published
2026-04-13 00:00
Modified
2026-04-13 12:01
Severity ?
8.9 (High) - 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
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RC:R
9.8 (Critical) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RC:R
CWE
Summary
A flaw has been found in Totolink A7100RU 7.4cu.2313_b20191024. The impacted element is the function setAccessDeviceCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. This manipulation of the argument mac causes os command injection. The attack can be initiated remotely. The exploit has been published and may be used.
References
Impacted products
Vendor Product Version
Totolink A7100RU Version: 7.4cu.2313_b20191024
    cpe:2.3:o:totolink:a7100ru_firmware:*:*:*:*:*:*:*:*
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-6138",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-13T12:01:11.321831Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-13T12:01:48.897Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:o:totolink:a7100ru_firmware:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "CGI Handler"
          ],
          "product": "A7100RU",
          "vendor": "Totolink",
          "versions": [
            {
              "status": "affected",
              "version": "7.4cu.2313_b20191024"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "LtzHuster (VulDB User)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw has been found in Totolink A7100RU 7.4cu.2313_b20191024. The impacted element is the function setAccessDeviceCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. This manipulation of the argument mac causes os command injection. The attack can be initiated remotely. The exploit has been published and may be used."
        }
      ],
      "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:UR",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-78",
              "description": "OS Command Injection",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-77",
              "description": "Command Injection",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-13T00:00:22.129Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-357002 | Totolink A7100RU CGI cstecgi.cgi setAccessDeviceCfg os command injection",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/357002"
        },
        {
          "name": "VDB-357002 | CTI Indicators (IOB, IOC, TTP, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/357002/cti"
        },
        {
          "name": "Submit #792980 | Totolink A7100RU 7.4cu.2313_b20191024 Command Injection",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/792980"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_191/README.md"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://www.totolink.net/"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-04-12T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-04-12T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-04-12T09:32:36.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "Totolink A7100RU CGI cstecgi.cgi setAccessDeviceCfg os command injection"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-6138",
    "datePublished": "2026-04-13T00:00:22.129Z",
    "dateReserved": "2026-04-12T07:27:20.729Z",
    "dateUpdated": "2026-04-13T12:01:48.897Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-6138\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-04-13T12:01:11.321831Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-04-13T12:01:34.217Z\"}}], \"cna\": {\"title\": \"Totolink A7100RU CGI cstecgi.cgi setAccessDeviceCfg os command injection\", \"credits\": [{\"lang\": \"en\", \"type\": \"reporter\", \"value\": \"LtzHuster (VulDB User)\"}], \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"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\"}}, {\"cvssV3_1\": {\"version\": \"3.1\", \"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\"}}, {\"cvssV3_0\": {\"version\": \"3.0\", \"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\"}}, {\"cvssV2_0\": {\"version\": \"2.0\", \"baseScore\": 10, \"vectorString\": \"AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR\"}}], \"affected\": [{\"cpes\": [\"cpe:2.3:o:totolink:a7100ru_firmware:*:*:*:*:*:*:*:*\"], \"vendor\": \"Totolink\", \"modules\": [\"CGI Handler\"], \"product\": \"A7100RU\", \"versions\": [{\"status\": \"affected\", \"version\": \"7.4cu.2313_b20191024\"}]}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-04-12T00:00:00.000Z\", \"value\": \"Advisory disclosed\"}, {\"lang\": \"en\", \"time\": \"2026-04-12T02:00:00.000Z\", \"value\": \"VulDB entry created\"}, {\"lang\": \"en\", \"time\": \"2026-04-12T09:32:36.000Z\", \"value\": \"VulDB entry last update\"}], \"references\": [{\"url\": \"https://vuldb.com/vuln/357002\", \"name\": \"VDB-357002 | Totolink A7100RU CGI cstecgi.cgi setAccessDeviceCfg os command injection\", \"tags\": [\"vdb-entry\", \"technical-description\"]}, {\"url\": \"https://vuldb.com/vuln/357002/cti\", \"name\": \"VDB-357002 | CTI Indicators (IOB, IOC, TTP, IOA)\", \"tags\": [\"signature\", \"permissions-required\"]}, {\"url\": \"https://vuldb.com/submit/792980\", \"name\": \"Submit #792980 | Totolink A7100RU 7.4cu.2313_b20191024 Command Injection\", \"tags\": [\"third-party-advisory\"]}, {\"url\": \"https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_191/README.md\", \"tags\": [\"exploit\"]}, {\"url\": \"https://www.totolink.net/\", \"tags\": [\"product\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A flaw has been found in Totolink A7100RU 7.4cu.2313_b20191024. The impacted element is the function setAccessDeviceCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. This manipulation of the argument mac causes os command injection. The attack can be initiated remotely. The exploit has been published and may be used.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-78\", \"description\": \"OS Command Injection\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-77\", \"description\": \"Command Injection\"}]}], \"providerMetadata\": {\"orgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"shortName\": \"VulDB\", \"dateUpdated\": \"2026-04-13T00:00:22.129Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-6138\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-13T12:01:48.897Z\", \"dateReserved\": \"2026-04-12T07:27:20.729Z\", \"assignerOrgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"datePublished\": \"2026-04-13T00:00:22.129Z\", \"assignerShortName\": \"VulDB\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.