VAR-202511-0384

Vulnerability from variot - Updated: 2025-12-19 22:38

A stack buffer overflow exists in the ToToLink A720R Router firmware V4.1.5cu.614_B20230630 within the sysconf binary (sub_401EE0 function). The binary reads the /proc/stat file using fgets() into a local buffer and subsequently parses the line using sscanf() into a single-byte variable with the %s format specifier. Maliciously crafted /proc/stat content can overwrite adjacent stack memory, potentially allowing an attacker with filesystem write privileges to execute arbitrary code on the device. TOTOLINK of A720R A stack-based buffer overflow vulnerability exists in the firmware.Information is obtained and service operation is interrupted (DoS) It may be in a state. The TOTOLINK A720R is a wireless router launched by TOTOLINK, a Chinese electronics company. It features dual-band Wi-Fi and emphasizes high-speed network and signal coverage. This vulnerability stems from a failure to properly validate the length of input data in the sysconf binary. Detailed vulnerability information is currently unavailable

Show details on source website

{
  "@context": {
    "@vocab": "https://www.variotdbs.pl/ref/VARIoTentry#",
    "affected_products": {
      "@id": "https://www.variotdbs.pl/ref/affected_products"
    },
    "configurations": {
      "@id": "https://www.variotdbs.pl/ref/configurations"
    },
    "credits": {
      "@id": "https://www.variotdbs.pl/ref/credits"
    },
    "cvss": {
      "@id": "https://www.variotdbs.pl/ref/cvss/"
    },
    "description": {
      "@id": "https://www.variotdbs.pl/ref/description/"
    },
    "exploit_availability": {
      "@id": "https://www.variotdbs.pl/ref/exploit_availability/"
    },
    "external_ids": {
      "@id": "https://www.variotdbs.pl/ref/external_ids/"
    },
    "iot": {
      "@id": "https://www.variotdbs.pl/ref/iot/"
    },
    "iot_taxonomy": {
      "@id": "https://www.variotdbs.pl/ref/iot_taxonomy/"
    },
    "patch": {
      "@id": "https://www.variotdbs.pl/ref/patch/"
    },
    "problemtype_data": {
      "@id": "https://www.variotdbs.pl/ref/problemtype_data/"
    },
    "references": {
      "@id": "https://www.variotdbs.pl/ref/references/"
    },
    "sources": {
      "@id": "https://www.variotdbs.pl/ref/sources/"
    },
    "sources_release_date": {
      "@id": "https://www.variotdbs.pl/ref/sources_release_date/"
    },
    "sources_update_date": {
      "@id": "https://www.variotdbs.pl/ref/sources_update_date/"
    },
    "threat_type": {
      "@id": "https://www.variotdbs.pl/ref/threat_type/"
    },
    "title": {
      "@id": "https://www.variotdbs.pl/ref/title/"
    },
    "type": {
      "@id": "https://www.variotdbs.pl/ref/type/"
    }
  },
  "@id": "https://www.variotdbs.pl/vuln/VAR-202511-0384",
  "affected_products": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/affected_products#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        },
        "@id": "https://www.variotdbs.pl/ref/sources"
      }
    },
    "data": [
      {
        "model": "a720r",
        "scope": "eq",
        "trust": 1.0,
        "vendor": "totolink",
        "version": "4.1.5cu.614_b20230630"
      },
      {
        "model": "a720r",
        "scope": "eq",
        "trust": 0.8,
        "vendor": "totolink",
        "version": null
      },
      {
        "model": "a720r",
        "scope": "eq",
        "trust": 0.8,
        "vendor": "totolink",
        "version": "a720r  firmware  4.1.5cu.614 b20230630"
      },
      {
        "model": "a720r",
        "scope": null,
        "trust": 0.8,
        "vendor": "totolink",
        "version": null
      },
      {
        "model": "a720r v4.1.5cu.614 b20230630",
        "scope": null,
        "trust": 0.6,
        "vendor": "totolink",
        "version": null
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2025-29712"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2025-019493"
      },
      {
        "db": "NVD",
        "id": "CVE-2025-60685"
      }
    ]
  },
  "cve": "CVE-2025-60685",
  "cvss": {
    "@context": {
      "cvssV2": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV2#"
        },
        "@id": "https://www.variotdbs.pl/ref/cvss/cvssV2"
      },
      "cvssV3": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV3#"
        },
        "@id": "https://www.variotdbs.pl/ref/cvss/cvssV3/"
      },
      "severity": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/cvss/severity#"
        },
        "@id": "https://www.variotdbs.pl/ref/cvss/severity"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        },
        "@id": "https://www.variotdbs.pl/ref/sources"
      }
    },
    "data": [
      {
        "cvssV2": [
          {
            "accessComplexity": "LOW",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "author": "CNVD",
            "availabilityImpact": "PARTIAL",
            "baseScore": 3.6,
            "confidentialityImpact": "PARTIAL",
            "exploitabilityScore": 3.9,
            "id": "CNVD-2025-29712",
            "impactScore": 4.9,
            "integrityImpact": "NONE",
            "severity": "LOW",
            "trust": 0.6,
            "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:P",
            "version": "2.0"
          }
        ],
        "cvssV3": [
          {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "author": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "availabilityImpact": "LOW",
            "baseScore": 5.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "exploitabilityScore": 2.5,
            "id": "CVE-2025-60685",
            "impactScore": 2.5,
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "trust": 1.0,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
            "version": "3.1"
          },
          {
            "attackComplexity": "Low",
            "attackVector": "Local",
            "author": "OTHER",
            "availabilityImpact": "Low",
            "baseScore": 5.1,
            "baseSeverity": "Medium",
            "confidentialityImpact": "Low",
            "exploitabilityScore": null,
            "id": "JVNDB-2025-019493",
            "impactScore": null,
            "integrityImpact": "None",
            "privilegesRequired": "None",
            "scope": "Unchanged",
            "trust": 0.8,
            "userInteraction": "None",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
            "version": "3.0"
          }
        ],
        "severity": [
          {
            "author": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "id": "CVE-2025-60685",
            "trust": 1.0,
            "value": "MEDIUM"
          },
          {
            "author": "OTHER",
            "id": "JVNDB-2025-019493",
            "trust": 0.8,
            "value": "Medium"
          },
          {
            "author": "CNVD",
            "id": "CNVD-2025-29712",
            "trust": 0.6,
            "value": "LOW"
          }
        ]
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2025-29712"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2025-019493"
      },
      {
        "db": "NVD",
        "id": "CVE-2025-60685"
      }
    ]
  },
  "description": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/description#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "A stack buffer overflow exists in the ToToLink A720R Router firmware V4.1.5cu.614_B20230630 within the sysconf binary (sub_401EE0 function). The binary reads the /proc/stat file using fgets() into a local buffer and subsequently parses the line using sscanf() into a single-byte variable with the %s format specifier. Maliciously crafted /proc/stat content can overwrite adjacent stack memory, potentially allowing an attacker with filesystem write privileges to execute arbitrary code on the device. TOTOLINK of A720R A stack-based buffer overflow vulnerability exists in the firmware.Information is obtained and service operation is interrupted (DoS) It may be in a state. The TOTOLINK A720R is a wireless router launched by TOTOLINK, a Chinese electronics company. It features dual-band Wi-Fi and emphasizes high-speed network and signal coverage. This vulnerability stems from a failure to properly validate the length of input data in the sysconf binary. Detailed vulnerability information is currently unavailable",
    "sources": [
      {
        "db": "NVD",
        "id": "CVE-2025-60685"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2025-019493"
      },
      {
        "db": "CNVD",
        "id": "CNVD-2025-29712"
      }
    ],
    "trust": 2.16
  },
  "external_ids": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/external_ids#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "db": "NVD",
        "id": "CVE-2025-60685",
        "trust": 3.2
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2025-019493",
        "trust": 0.8
      },
      {
        "db": "CNVD",
        "id": "CNVD-2025-29712",
        "trust": 0.6
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2025-29712"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2025-019493"
      },
      {
        "db": "NVD",
        "id": "CVE-2025-60685"
      }
    ]
  },
  "id": "VAR-202511-0384",
  "iot": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/iot#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": true,
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2025-29712"
      }
    ],
    "trust": 0.06
  },
  "iot_taxonomy": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/iot_taxonomy#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "category": [
          "Network device"
        ],
        "sub_category": null,
        "trust": 0.6
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2025-29712"
      }
    ]
  },
  "last_update_date": "2025-12-19T22:38:41.131000Z",
  "problemtype_data": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/problemtype_data#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "problemtype": "CWE-121",
        "trust": 1.0
      },
      {
        "problemtype": "Stack-based buffer overflow (CWE-121) [ others ]",
        "trust": 0.8
      }
    ],
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2025-019493"
      },
      {
        "db": "NVD",
        "id": "CVE-2025-60685"
      }
    ]
  },
  "references": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/references#",
      "data": {
        "@container": "@list"
      },
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": [
      {
        "trust": 1.8,
        "url": "https://github.com/yifan20020708/sgtaint-0-day/blob/main/totolink/totolink-a720r/cve-2025-60685.md"
      },
      {
        "trust": 1.8,
        "url": "https://www.totolink.net/"
      },
      {
        "trust": 1.4,
        "url": "https://nvd.nist.gov/vuln/detail/cve-2025-60685"
      },
      {
        "trust": 1.0,
        "url": "http://totolink.com"
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2025-29712"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2025-019493"
      },
      {
        "db": "NVD",
        "id": "CVE-2025-60685"
      }
    ]
  },
  "sources": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "db": "CNVD",
        "id": "CNVD-2025-29712"
      },
      {
        "db": "JVNDB",
        "id": "JVNDB-2025-019493"
      },
      {
        "db": "NVD",
        "id": "CVE-2025-60685"
      }
    ]
  },
  "sources_release_date": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources_release_date#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "date": "2025-12-02T00:00:00",
        "db": "CNVD",
        "id": "CNVD-2025-29712"
      },
      {
        "date": "2025-11-20T00:00:00",
        "db": "JVNDB",
        "id": "JVNDB-2025-019493"
      },
      {
        "date": "2025-11-13T16:15:52.470000",
        "db": "NVD",
        "id": "CVE-2025-60685"
      }
    ]
  },
  "sources_update_date": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/sources_update_date#",
      "data": {
        "@container": "@list"
      }
    },
    "data": [
      {
        "date": "2025-12-03T00:00:00",
        "db": "CNVD",
        "id": "CNVD-2025-29712"
      },
      {
        "date": "2025-11-20T03:22:00",
        "db": "JVNDB",
        "id": "JVNDB-2025-019493"
      },
      {
        "date": "2025-11-17T21:50:14.877000",
        "db": "NVD",
        "id": "CVE-2025-60685"
      }
    ]
  },
  "title": {
    "@context": {
      "@vocab": "https://www.variotdbs.pl/ref/title#",
      "sources": {
        "@container": "@list",
        "@context": {
          "@vocab": "https://www.variotdbs.pl/ref/sources#"
        }
      }
    },
    "data": "TOTOLINK\u00a0 of \u00a0A720R\u00a0 Stack-based buffer overflow vulnerability in firmware",
    "sources": [
      {
        "db": "JVNDB",
        "id": "JVNDB-2025-019493"
      }
    ],
    "trust": 0.8
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.

Loading…

Loading…

Loading…

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


Loading…