ubuntu-cve-2023-53959
Vulnerability from osv_ubuntu
Published
2025-12-19 21:15
Modified
2026-05-20 15:06
Summary
Details

FileZilla Client 3.63.1 contains a DLL hijacking vulnerability that allows attackers to execute malicious code by placing a crafted TextShaping.dll in the application directory. Attackers can generate a reverse shell payload using msfvenom and replace the missing DLL to achieve remote code execution when the application launches.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.5 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "filezilla",
            "binary_version": "3.15.0.2-1ubuntu1"
          },
          {
            "binary_name": "filezilla-common",
            "binary_version": "3.15.0.2-1ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "filezilla",
        "purl": "pkg:deb/ubuntu/filezilla@3.15.0.2-1ubuntu1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.12.0.2-1ubuntu2",
        "3.14.1-1ubuntu1",
        "3.15.0.2-0ubuntu1",
        "3.15.0.2-1ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "filezilla",
            "binary_version": "3.28.0-1"
          },
          {
            "binary_name": "filezilla-common",
            "binary_version": "3.28.0-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "filezilla",
        "purl": "pkg:deb/ubuntu/filezilla@3.28.0-1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.27.0~rc1-1",
        "3.28.0-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "filezilla",
            "binary_version": "3.46.3-1ubuntu0.1"
          },
          {
            "binary_name": "filezilla-common",
            "binary_version": "3.46.3-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "filezilla",
        "purl": "pkg:deb/ubuntu/filezilla@3.46.3-1ubuntu0.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.39.0-2",
        "3.45.1-3",
        "3.45.1-3build1",
        "3.46.3-1~build1",
        "3.46.3-1",
        "3.46.3-1build1",
        "3.46.3-1ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "filezilla",
            "binary_version": "3.58.0-1ubuntu0.1"
          },
          {
            "binary_name": "filezilla-common",
            "binary_version": "3.58.0-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "filezilla",
        "purl": "pkg:deb/ubuntu/filezilla@3.58.0-1ubuntu0.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.52.2-3",
        "3.56.0-1",
        "3.56.2-1",
        "3.57.0-1",
        "3.57.0-1build1",
        "3.58.0-1",
        "3.58.0-1ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "filezilla",
            "binary_version": "3.66.5-2build2"
          },
          {
            "binary_name": "filezilla-common",
            "binary_version": "3.66.5-2build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "filezilla",
        "purl": "pkg:deb/ubuntu/filezilla@3.66.5-2build2?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.65.0-3",
        "3.66.1-2",
        "3.66.1-3",
        "3.66.1-3.2",
        "3.66.1-4",
        "3.66.4-1",
        "3.66.4-2",
        "3.66.5-2",
        "3.66.5-2build1",
        "3.66.5-2build2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "filezilla",
            "binary_version": "3.69.3-1"
          },
          {
            "binary_name": "filezilla-common",
            "binary_version": "3.69.3-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "filezilla",
        "purl": "pkg:deb/ubuntu/filezilla@3.69.3-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.68.1-1",
        "3.69.3-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "filezilla",
            "binary_version": "3.69.6-1"
          },
          {
            "binary_name": "filezilla-common",
            "binary_version": "3.69.6-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "filezilla",
        "purl": "pkg:deb/ubuntu/filezilla@3.69.6-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.69.3-1",
        "3.69.5-1",
        "3.69.6-1"
      ]
    }
  ],
  "aliases": [],
  "details": "FileZilla Client 3.63.1 contains a DLL hijacking vulnerability that allows attackers to execute malicious code by placing a crafted TextShaping.dll in the application directory. Attackers can generate a reverse shell payload using msfvenom and replace the missing DLL to achieve remote code execution when the application launches.",
  "id": "UBUNTU-CVE-2023-53959",
  "modified": "2026-05-20T15:06:24Z",
  "published": "2025-12-19T21:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-53959"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-53959"
    },
    {
      "type": "REPORT",
      "url": "https://filezilla-project.org/"
    },
    {
      "type": "REPORT",
      "url": "https://www.exploit-db.com/exploits/51267"
    },
    {
      "type": "REPORT",
      "url": "https://www.vulncheck.com/advisories/filezilla-client-dll-hijacking-via-missing-textshapingdll"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2023-53959"
  ]
}



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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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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