FKIE_CVE-2023-40042

Vulnerability from fkie_nvd - Published: 2023-08-08 19:15 - Updated: 2026-06-17 06:15
Severity
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
TOTOLINK T10_v2 5.9c.5061_B20200511 has a stack-based buffer overflow in setStaticDhcpConfig in /lib/cste_modules/lan.so. Attackers can send crafted data in an MQTT packet, via the comment parameter, to control the return address and execute code.
References
cve@mitre.orghttp://www.totolink.cnNot Applicable
cve@mitre.orghttps://github.com/Korey0sh1/IoT_vuln/blob/main/TOTOLINK/T10_V2/setStaticDhcpConfig.mdExploit, Third Party Advisory
cve@mitre.orghttps://www.totolink.net/home/menu/detail/menu_listtpl/download/id/172/ids/36.htmlProduct
af854a3a-2127-422b-91ae-364da2661108http://www.totolink.cnNot Applicable
af854a3a-2127-422b-91ae-364da2661108https://github.com/Korey0sh1/IoT_vuln/blob/main/TOTOLINK/T10_V2/setStaticDhcpConfig.mdExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/172/ids/36.htmlProduct
Impacted products
Vendor Product Version
totolink t10_v2_firmware 5.9c.5061_b20200511
totolink t10_v2 -
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    },
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:h:totolink:t10_v2:-:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "product": "t10_v2",
          "vendor": "totolink",
          "versions": [
            {
              "status": "affected",
              "version": "5.9c.5061_b20200511"
            }
          ]
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:totolink:t10_v2_firmware:5.9c.5061_b20200511:*:*:*:*:*:*:*",
              "matchCriteriaId": "681F1D55-AC67-4351-B865-7FDB8470202C",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:totolink:t10_v2:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "81998168-A1BA-49C5-BDD8-33CBB0AEE886",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "TOTOLINK T10_v2 5.9c.5061_B20200511 has a stack-based buffer overflow in setStaticDhcpConfig in /lib/cste_modules/lan.so. Attackers can send crafted data in an MQTT packet, via the comment parameter, to control the return address and execute code."
    }
  ],
  "id": "CVE-2023-40042",
  "lastModified": "2026-06-17T06:15:54.360",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-40042",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-10-10T19:32:44.361060Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2023-08-08T19:15:10.873",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Not Applicable"
      ],
      "url": "http://www.totolink.cn"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/Korey0sh1/IoT_vuln/blob/main/TOTOLINK/T10_V2/setStaticDhcpConfig.md"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Product"
      ],
      "url": "https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/172/ids/36.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Not Applicable"
      ],
      "url": "http://www.totolink.cn"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/Korey0sh1/IoT_vuln/blob/main/TOTOLINK/T10_V2/setStaticDhcpConfig.md"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Product"
      ],
      "url": "https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/172/ids/36.html"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Sightings

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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.
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  • 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.