CVE-2025-14693 (GCVE-0-2025-14693)

Vulnerability from cvelistv5 – Published: 2025-12-15 00:02 – Updated: 2026-01-28 06:49
VLAI
Title
Ugreen DH2100+ USB symlink
Summary
A vulnerability has been found in Ugreen DH2100+ up to 5.3.0. This affects an unknown function of the component USB Handler. Such manipulation leads to symlink following. The attack can be executed directly on the physical device. The exploit has been disclosed to the public and may be used. It is suggested to upgrade the affected component.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-15 19:35 UTC
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 83/100 over 3853 records in the last 180 days details
References
URL Tags
https://vuldb.com/?id.336411 vdb-entrytechnical-description
https://vuldb.com/?ctiid.336411 signaturepermissions-required
https://vuldb.com/?submit.704646 third-party-advisory
https://vuldb.com/?submit.704657 third-party-advisory
https://www.notion.so/2bc6cf4e528a8083bf3fc6f7a953f0a1 exploit
Impacted products
Vendor Product Version CPE status
Ugreen DH2100+ Affected: 5.0
Affected: 5.1
Affected: 5.2
Affected: 5.3.0
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-14693",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-12-15T19:35:07.000915Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-12-15T19:35:39.780Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "modules": [
            "USB Handler"
          ],
          "product": "DH2100+",
          "vendor": "Ugreen",
          "versions": [
            {
              "status": "affected",
              "version": "5.0"
            },
            {
              "status": "affected",
              "version": "5.1"
            },
            {
              "status": "affected",
              "version": "5.2"
            },
            {
              "status": "affected",
              "version": "5.3.0"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "rgyue (VulDB User)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability has been found in Ugreen DH2100+ up to 5.3.0. This affects an unknown function of the component USB Handler. Such manipulation leads to symlink following. The attack can be executed directly on the physical device. The exploit has been disclosed to the public and may be used. It is suggested to upgrade the affected component."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 7,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:4.0/AV:P/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 6.2,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 6.2,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 6.5,
            "vectorString": "AV:L/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:OF/RC:C",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-61",
              "description": "Symlink Following",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-59",
              "description": "Link Following",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-28T06:49:07.795Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-336411 | Ugreen DH2100+ USB symlink",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/?id.336411"
        },
        {
          "name": "VDB-336411 | CTI Indicators (IOB, IOC)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/?ctiid.336411"
        },
        {
          "name": "Submit #704646 | Ugreen NAS DH2100+ V5.3.0 Incorrect Access Control",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/?submit.704646"
        },
        {
          "name": "Submit #704657 | Ugreen Ugreen NAS DH2100+ V5.3.0 Incorrect Access Control (Duplicate)",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/?submit.704657"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://www.notion.so/2bc6cf4e528a8083bf3fc6f7a953f0a1"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2025-12-14T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2025-12-14T01:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-01-28T07:52:33.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "Ugreen DH2100+ USB symlink"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2025-14693",
    "datePublished": "2025-12-15T00:02:06.966Z",
    "dateReserved": "2025-12-14T10:48:51.666Z",
    "dateUpdated": "2026-01-28T06:49:07.795Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-14693",
      "date": "2026-11-12",
      "epss": "0.00219",
      "percentile": "0.12576"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "modules": [
                  "USB Handler"
                ],
                "product": "DH2100+",
                "vendor": "Ugreen",
                "versions": [
                  {
                    "status": "affected",
                    "version": "5.0"
                  },
                  {
                    "status": "affected",
                    "version": "5.1"
                  },
                  {
                    "status": "affected",
                    "version": "5.2"
                  },
                  {
                    "status": "affected",
                    "version": "5.3.0"
                  }
                ]
              }
            ],
            "source": "cna@vuldb.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "A vulnerability has been found in Ugreen DH2100+ up to 5.3.0. This affects an unknown function of the component USB Handler. Such manipulation leads to symlink following. The attack can be executed directly on the physical device. The exploit has been disclosed to the public and may be used. It is suggested to upgrade the affected component."
          },
          {
            "lang": "es",
            "value": "Una vulnerabilidad ha sido encontrada en Ugreen DH2100+ hasta 5.3.0. Esto afecta una funci\u00f3n desconocida del componente USB Gestor. Dicha manipulaci\u00f3n lleva a seguimiento de enlaces simb\u00f3licos. El ataque puede ser ejecutado directamente en el dispositivo f\u00edsico. El exploit ha sido revelado al p\u00fablico y puede ser usado. Se sugiere actualizar el componente afectado."
          }
        ],
        "id": "CVE-2025-14693",
        "lastModified": "2026-10-07T19:10:00.160",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "LOCAL",
                "authentication": "MULTIPLE",
                "availabilityImpact": "COMPLETE",
                "baseScore": 6.5,
                "confidentialityImpact": "COMPLETE",
                "integrityImpact": "COMPLETE",
                "vectorString": "AV:L/AC:L/Au:M/C:C/I:C/A:C",
                "version": "2.0"
              },
              "exploitabilityScore": 2.5,
              "impactScore": 10.0,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "cna@vuldb.com",
              "type": "Secondary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "PHYSICAL",
                "availabilityImpact": "HIGH",
                "baseScore": 6.2,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "HIGH",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 0.3,
              "impactScore": 5.9,
              "source": "cna@vuldb.com",
              "type": "Secondary"
            }
          ],
          "cvssMetricV40": [
            {
              "cvssData": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "PHYSICAL",
                "availabilityRequirement": "NOT_DEFINED",
                "baseScore": 5.2,
                "baseSeverity": "MEDIUM",
                "confidentialityRequirement": "NOT_DEFINED",
                "exploitMaturity": "PROOF_OF_CONCEPT",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
                "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "HIGH",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:P/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
                "version": "4.0",
                "vulnAvailabilityImpact": "HIGH",
                "vulnConfidentialityImpact": "HIGH",
                "vulnIntegrityImpact": "HIGH",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "source": "cna@vuldb.com",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2025-14693",
                "options": [
                  {
                    "exploitation": "poc"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-12-15T19:35:07.000915Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2025-12-15T01:15:37.903",
        "references": [
          {
            "source": "cna@vuldb.com",
            "url": "https://vuldb.com/?ctiid.336411"
          },
          {
            "source": "cna@vuldb.com",
            "url": "https://vuldb.com/?id.336411"
          },
          {
            "source": "cna@vuldb.com",
            "url": "https://vuldb.com/?submit.704646"
          },
          {
            "source": "cna@vuldb.com",
            "url": "https://vuldb.com/?submit.704657"
          },
          {
            "source": "cna@vuldb.com",
            "url": "https://www.notion.so/2bc6cf4e528a8083bf3fc6f7a953f0a1"
          }
        ],
        "sourceIdentifier": "cna@vuldb.com",
        "vulnStatus": "Deferred",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-59"
              },
              {
                "lang": "en",
                "value": "CWE-61"
              }
            ],
            "source": "cna@vuldb.com",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2026-01-28T09:17:32+00:00",
      "cve": "CVE-2025-14693",
      "id": "CVE-2025-14693",
      "initial_release_date": "2025-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Ugreen DH2100+ USB symlink",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-14693.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2025-14693",
                    "options": [
                      {
                        "Exploitation": "poc"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-12-15T19:35:07.000915Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-12-15T19:35:19.092Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "modules": [
                "USB Handler"
              ],
              "product": "DH2100+",
              "vendor": "Ugreen",
              "versions": [
                {
                  "status": "affected",
                  "version": "5.0"
                },
                {
                  "status": "affected",
                  "version": "5.1"
                },
                {
                  "status": "affected",
                  "version": "5.2"
                },
                {
                  "status": "affected",
                  "version": "5.3.0"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "reporter",
              "value": "rgyue (VulDB User)"
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "A vulnerability has been found in Ugreen DH2100+ up to 5.3.0. This affects an unknown function of the component USB Handler. Such manipulation leads to symlink following. The attack can be executed directly on the physical device. The exploit has been disclosed to the public and may be used. It is suggested to upgrade the affected component."
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "baseScore": 7,
                "baseSeverity": "HIGH",
                "vectorString": "CVSS:4.0/AV:P/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P",
                "version": "4.0"
              }
            },
            {
              "cvssV3_1": {
                "baseScore": 6.2,
                "baseSeverity": "MEDIUM",
                "vectorString": "CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
                "version": "3.1"
              }
            },
            {
              "cvssV3_0": {
                "baseScore": 6.2,
                "baseSeverity": "MEDIUM",
                "vectorString": "CVSS:3.0/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
                "version": "3.0"
              }
            },
            {
              "cvssV2_0": {
                "baseScore": 6.5,
                "vectorString": "AV:L/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:OF/RC:C",
                "version": "2.0"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-61",
                  "description": "Symlink Following",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            },
            {
              "descriptions": [
                {
                  "cweId": "CWE-59",
                  "description": "Link Following",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-01-28T06:49:07.795Z",
            "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
            "shortName": "VulDB"
          },
          "references": [
            {
              "name": "VDB-336411 | Ugreen DH2100+ USB symlink",
              "tags": [
                "vdb-entry",
                "technical-description"
              ],
              "url": "https://vuldb.com/?id.336411"
            },
            {
              "name": "VDB-336411 | CTI Indicators (IOB, IOC)",
              "tags": [
                "signature",
                "permissions-required"
              ],
              "url": "https://vuldb.com/?ctiid.336411"
            },
            {
              "name": "Submit #704646 | Ugreen NAS DH2100+ V5.3.0 Incorrect Access Control",
              "tags": [
                "third-party-advisory"
              ],
              "url": "https://vuldb.com/?submit.704646"
            },
            {
              "name": "Submit #704657 | Ugreen Ugreen NAS DH2100+ V5.3.0 Incorrect Access Control (Duplicate)",
              "tags": [
                "third-party-advisory"
              ],
              "url": "https://vuldb.com/?submit.704657"
            },
            {
              "tags": [
                "exploit"
              ],
              "url": "https://www.notion.so/2bc6cf4e528a8083bf3fc6f7a953f0a1"
            }
          ],
          "timeline": [
            {
              "lang": "en",
              "time": "2025-12-14T00:00:00.000Z",
              "value": "Advisory disclosed"
            },
            {
              "lang": "en",
              "time": "2025-12-14T01:00:00.000Z",
              "value": "VulDB entry created"
            },
            {
              "lang": "en",
              "time": "2026-01-28T07:52:33.000Z",
              "value": "VulDB entry last update"
            }
          ],
          "title": "Ugreen DH2100+ USB symlink"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "assignerShortName": "VulDB",
        "cveId": "CVE-2025-14693",
        "datePublished": "2025-12-15T00:02:06.966Z",
        "dateReserved": "2025-12-14T10:48:51.666Z",
        "dateUpdated": "2026-01-28T06:49:07.795Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Events included in the timeline

Loading timeline…


    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.