UBUNTU-CVE-2026-116744 (CVE-2026-116744)

Vulnerability from osv_ubuntu – Published: 2026-10-26 22:16 – Updated: 2026-10-28 17:50 – Source website
VLAI
Details

ntop nDPI through 6.0 contains an out-of-bounds read vulnerability in dissect_softether_host_fqdn() in softether.c that compares host_name using the consumed byte count instead of data length. Remote attackers can send crafted short UDP datagrams on already-classified SoftEther flows, causing strncmp to read beyond the packet payload buffer.

Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libndpi-bin",
            "binary_version": "1.7.1~git20151130.6f3d5a7-1"
          },
          {
            "binary_name": "libndpi3",
            "binary_version": "1.7.1~git20151130.6f3d5a7-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "ndpi",
        "purl": "pkg:deb/ubuntu/ndpi@1.7.1~git20151130.6f3d5a7-1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.5.0-1",
        "1.6-1",
        "1.7.1~git20151130.6f3d5a7-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libndpi-bin",
            "binary_version": "2.2-1"
          },
          {
            "binary_name": "libndpi-wireshark",
            "binary_version": "2.2-1"
          },
          {
            "binary_name": "libndpi5",
            "binary_version": "2.2-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "ndpi",
        "purl": "pkg:deb/ubuntu/ndpi@2.2-1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.8-1",
        "2.2-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libndpi-bin",
            "binary_version": "2.6-5"
          },
          {
            "binary_name": "libndpi-wireshark",
            "binary_version": "2.6-5"
          },
          {
            "binary_name": "libndpi2.6",
            "binary_version": "2.6-5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "ndpi",
        "purl": "pkg:deb/ubuntu/ndpi@2.6-5?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.6-4",
        "2.6-5"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libndpi-bin",
            "binary_version": "4.2-2"
          },
          {
            "binary_name": "libndpi-wireshark",
            "binary_version": "4.2-2"
          },
          {
            "binary_name": "libndpi4.2",
            "binary_version": "4.2-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "ndpi",
        "purl": "pkg:deb/ubuntu/ndpi@4.2-2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.0-4",
        "4.2-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libndpi-bin",
            "binary_version": "4.2-2.1build1"
          },
          {
            "binary_name": "libndpi-wireshark",
            "binary_version": "4.2-2.1build1"
          },
          {
            "binary_name": "libndpi4.2t64",
            "binary_version": "4.2-2.1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "ndpi",
        "purl": "pkg:deb/ubuntu/ndpi@4.2-2.1build1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.2-2",
        "4.2-2.1",
        "4.2-2.1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libndpi-bin",
            "binary_version": "4.2-2.1build2"
          },
          {
            "binary_name": "libndpi-wireshark",
            "binary_version": "4.2-2.1build2"
          },
          {
            "binary_name": "libndpi4.2t64",
            "binary_version": "4.2-2.1build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.10",
        "name": "ndpi",
        "purl": "pkg:deb/ubuntu/ndpi@4.2-2.1build2?arch=source\u0026distro=stonking"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.2-2.1build2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libndpi-bin",
            "binary_version": "4.2-2.1build2"
          },
          {
            "binary_name": "libndpi-wireshark",
            "binary_version": "4.2-2.1build2"
          },
          {
            "binary_name": "libndpi4.2t64",
            "binary_version": "4.2-2.1build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "ndpi",
        "purl": "pkg:deb/ubuntu/ndpi@4.2-2.1build2?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.2-2.1build1",
        "4.2-2.1build2"
      ]
    }
  ],
  "aliases": [],
  "details": "ntop nDPI through 6.0 contains an out-of-bounds read vulnerability in dissect_softether_host_fqdn() in softether.c that compares host_name using the consumed byte count instead of data length. Remote attackers can send crafted short UDP datagrams on already-classified SoftEther flows, causing strncmp to read beyond the packet payload buffer.",
  "id": "UBUNTU-CVE-2026-116744",
  "modified": "2026-10-28T17:50:38Z",
  "published": "2026-10-26T22:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-116744"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-116744"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/ntop/ndpi"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/cveproject/cvelistv5/tree/main/cves/2026/116xxx/cve-2026-116744.json"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/ntop/ndpi/blob/6.0/src/lib/protocols/softether.c#l203"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/ntop/ndpi/commit/ca9d819151606377ac53305583fe819748c69be2"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/ntop/ndpi/issues/3291"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/ntop/ndpi/pull/3298"
    },
    {
      "type": "REPORT",
      "url": "https://hackmd.io/@haindpwn/ndpi-softether-host-fqdn-strncmp-oob-read"
    },
    {
      "type": "REPORT",
      "url": "https://nvd.nist.gov/vuln/detail/cve-2026-116744"
    },
    {
      "type": "REPORT",
      "url": "https://www.vulncheck.com/advisories/ntop-ndpi-through-6.0-out-of-bounds-read-in-softether-dissector"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-116744"
  ]
}



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