CVE-2026-17250 (GCVE-0-2026-17250)

Vulnerability from cvelistv5 – Published: 2026-08-21 17:16 – Updated: 2026-08-25 03:56
VLAI
Title
Authenticated Remote Code Execution via Stack-Based Buffer Overflow in Firmware Update Handling
Summary
A stack-based buffer overflow vulnerability exists in the firmware update functionality of TL-MR6400 v7 due to unsafe processing of attacker-controlled metadata within a firmware image. Successful exploitation may allow an authenticated attacker to trigger memory corruption and execute arbitrary code on the affected device.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-24 00:00 UTC
CWE
  • CWE-121 - Stack-based buffer overflow
Assigner
TPLink CNA under the mitre root
CNA scorecard B 88/100 over 97 records in the last 180 days details
Impacted products
Vendor Product Version CPE status
TP-Link Systems Inc. TL-MR6400 v7.0 Affected: 0 , < 1.9.0 Build 260714 (custom)
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-17250",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-24T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-25T03:56:42.953Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Linux"
          ],
          "product": "TL-MR6400 v7.0",
          "vendor": "TP-Link Systems Inc.",
          "versions": [
            {
              "lessThan": "1.9.0 Build 260714",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Rui Cheng Yu (Hina)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eA\nstack-based buffer overflow vulnerability exists in the firmware update\nfunctionality of TL-MR6400 v7 due to unsafe processing of\nattacker-controlled metadata within a firmware image. \u003c/p\u003e\n\n\u003cp\u003eSuccessful\nexploitation may allow an authenticated attacker to trigger memory corruption\nand execute arbitrary code on the affected device.\u003c/p\u003e"
            }
          ],
          "value": "A\nstack-based buffer overflow vulnerability exists in the firmware update\nfunctionality of TL-MR6400 v7 due to unsafe processing of\nattacker-controlled metadata within a firmware image. \n\n\n\n\n\nSuccessful\nexploitation may allow an authenticated attacker to trigger memory corruption\nand execute arbitrary code on the affected device."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-100",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-100 Overflow Buffers"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "ADJACENT",
            "baseScore": 8.5,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "HIGH",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-121",
              "description": "CWE-121 Stack-based buffer overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-21T17:16:38.888Z",
        "orgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
        "shortName": "TPLink"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://www.tp-link.com/en/support/download/tl-mr6400/v7/#Firmware"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://www.tp-link.com/tw/support/download/tl-mr6400/v7/#Firmware"
        },
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.tp-link.com/us/support/faq/5259/"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Authenticated Remote Code Execution via Stack-Based Buffer Overflow in Firmware Update Handling",
      "x_generator": {
        "engine": "Vulnogram 1.0.4"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
    "assignerShortName": "TPLink",
    "cveId": "CVE-2026-17250",
    "datePublished": "2026-08-21T17:16:38.888Z",
    "dateReserved": "2026-07-24T22:03:10.608Z",
    "dateUpdated": "2026-08-25T03:56:42.953Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-17250",
      "date": "2026-10-17",
      "epss": "0.00295",
      "percentile": "0.20717"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "platforms": [
                  "Linux"
                ],
                "product": "TL-MR6400 v7.0",
                "vendor": "TP-Link Systems Inc.",
                "versions": [
                  {
                    "lessThan": "1.9.0 Build 260714",
                    "status": "affected",
                    "version": "0",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "source": "f23511db-6c3e-4e32-a477-6aa17d310630"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "A\nstack-based buffer overflow vulnerability exists in the firmware update\nfunctionality of TL-MR6400 v7 due to unsafe processing of\nattacker-controlled metadata within a firmware image. \n\n\n\n\n\nSuccessful\nexploitation may allow an authenticated attacker to trigger memory corruption\nand execute arbitrary code on the affected device."
          },
          {
            "lang": "es",
            "value": "Una vulnerabilidad de desbordamiento de b\u00fafer basado en pila existe en la funcionalidad de actualizaci\u00f3n de firmware del TL-MR6400 v7 debido al procesamiento inseguro de metadatos controlados por el atacante dentro de una imagen de firmware.\n\nLa explotaci\u00f3n exitosa puede permitir a un atacante autenticado activar la corrupci\u00f3n de memoria y ejecutar c\u00f3digo arbitrario en el dispositivo afectado."
          }
        ],
        "id": "CVE-2026-17250",
        "lastModified": "2026-10-14T19:10:00.297",
        "metrics": {
          "cvssMetricV40": [
            {
              "cvssData": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "ADJACENT",
                "availabilityRequirement": "NOT_DEFINED",
                "baseScore": 8.5,
                "baseSeverity": "HIGH",
                "confidentialityRequirement": "NOT_DEFINED",
                "exploitMaturity": "NOT_DEFINED",
                "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:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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": "f23511db-6c3e-4e32-a477-6aa17d310630",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-17250",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-24T00:00:00+00:00",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-08-21T18:16:47.450",
        "references": [
          {
            "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
            "url": "https://www.tp-link.com/en/support/download/tl-mr6400/v7/#Firmware"
          },
          {
            "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
            "url": "https://www.tp-link.com/tw/support/download/tl-mr6400/v7/#Firmware"
          },
          {
            "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
            "url": "https://www.tp-link.com/us/support/faq/5259/"
          }
        ],
        "sourceIdentifier": "f23511db-6c3e-4e32-a477-6aa17d310630",
        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-121"
              }
            ],
            "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
            "type": "Secondary"
          }
        ]
      }
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-17250",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-08-21T17:40:51.235429Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-08-21T17:40:55.960Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "platforms": [
                "Linux"
              ],
              "product": "TL-MR6400 v7.0",
              "vendor": "TP-Link Systems Inc.",
              "versions": [
                {
                  "lessThan": "1.9.0 Build 260714",
                  "status": "affected",
                  "version": "0",
                  "versionType": "custom"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "value": "Rui Cheng Yu (Hina)"
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "\u003cp\u003eA\nstack-based buffer overflow vulnerability exists in the firmware update\nfunctionality of TL-MR6400 v7 due to unsafe processing of\nattacker-controlled metadata within a firmware image. \u003c/p\u003e\n\n\u003cp\u003eSuccessful\nexploitation may allow an authenticated attacker to trigger memory corruption\nand execute arbitrary code on the affected device.\u003c/p\u003e"
                }
              ],
              "value": "A\nstack-based buffer overflow vulnerability exists in the firmware update\nfunctionality of TL-MR6400 v7 due to unsafe processing of\nattacker-controlled metadata within a firmware image. \n\n\n\n\n\nSuccessful\nexploitation may allow an authenticated attacker to trigger memory corruption\nand execute arbitrary code on the affected device."
            }
          ],
          "impacts": [
            {
              "capecId": "CAPEC-100",
              "descriptions": [
                {
                  "lang": "en",
                  "value": "CAPEC-100 Overflow Buffers"
                }
              ]
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "ADJACENT",
                "baseScore": 8.5,
                "baseSeverity": "HIGH",
                "exploitMaturity": "NOT_DEFINED",
                "privilegesRequired": "HIGH",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                "version": "4.0",
                "vulnAvailabilityImpact": "HIGH",
                "vulnConfidentialityImpact": "HIGH",
                "vulnIntegrityImpact": "HIGH",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-121",
                  "description": "CWE-121 Stack-based buffer overflow",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-21T17:16:38.888Z",
            "orgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
            "shortName": "TPLink"
          },
          "references": [
            {
              "tags": [
                "patch"
              ],
              "url": "https://www.tp-link.com/en/support/download/tl-mr6400/v7/#Firmware"
            },
            {
              "tags": [
                "patch"
              ],
              "url": "https://www.tp-link.com/tw/support/download/tl-mr6400/v7/#Firmware"
            },
            {
              "tags": [
                "vendor-advisory"
              ],
              "url": "https://www.tp-link.com/us/support/faq/5259/"
            }
          ],
          "source": {
            "discovery": "UNKNOWN"
          },
          "title": "Authenticated Remote Code Execution via Stack-Based Buffer Overflow in Firmware Update Handling",
          "x_generator": {
            "engine": "Vulnogram 1.0.4"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
        "assignerShortName": "TPLink",
        "cveId": "CVE-2026-17250",
        "datePublished": "2026-08-21T17:16:38.888Z",
        "dateReserved": "2026-07-24T22:03:10.608Z",
        "dateUpdated": "2026-08-25T03:56:42.953Z",
        "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
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.