CVE-2026-17535 (GCVE-0-2026-17535)

Vulnerability from cvelistv5 – Published: 2026-08-11 14:47 – Updated: 2026-08-11 19:43
VLAI
Title
Velociraptor Multiple Crashes in NTFS Parser when applied to invalid NTFS Volumes
Summary
Velociraptor's NTFS parsing library mishandles several out of bound and memory exhaustion bugs which may be triggered by maliciously crafted NTFS images. Typically Velociraptor's NTFS parser is used on live NTFS filesystems, limiting the opportunity of attackers corrupting the filesystem. However, in some applications (e.g.  dead disk forensics https://docs.velociraptor.app/docs/forensic/deaddisk/ ) Velociraptor may be used on untrusted NTFS image files.  If an attacker is able to inject maliciously corrupted NTFS Volumes they can cause a crash and a Denial of Service.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-11 19:28 UTC
CWE
  • CWE-125 - Out-of-bounds read
  • CWE-789 - Memory allocation with excessive size value
  • CWE-369 - Divide by zero
Assigner
rapid7 CNA under the mitre root
CNA scorecard B 76/100 over 78 records in the last 180 days details
Impacted products
Vendor Product Version CPE status
Rapid7 Velociraptor Affected: 0 , < 0.77.2 (semver)
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-17535",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-11T19:28:19.365550Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-11T19:43:42.930Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Velociraptor",
          "repo": "https://github.com/Velocidex/velociraptor/",
          "vendor": "Rapid7",
          "versions": [
            {
              "lessThan": "0.77.2",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "configurations": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "This vulnerability is exploitable when ingesting untrusted NTFS volumes and using Velociraptor to parse these in dead disk mode."
            }
          ],
          "value": "This vulnerability is exploitable when ingesting untrusted NTFS volumes and using Velociraptor to parse these in dead disk mode."
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Kris Kennaway (Datadog)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eVelociraptor\u0027s NTFS parsing library mishandles several out of bound and memory exhaustion bugs which may be triggered by maliciously crafted NTFS images.\u003c/p\u003e\u003cdiv\u003eTypically Velociraptor\u0027s NTFS parser is used on live NTFS filesystems, limiting the opportunity of attackers corrupting the filesystem. However, in some applications (e.g.\u0026nbsp;\u003ca href=\"https://docs.velociraptor.app/docs/forensic/deaddisk/\"\u003edead disk forensics\u003c/a\u003e) Velociraptor may be used on untrusted NTFS image files.\u0026nbsp;\u003c/div\u003e\u003cdiv\u003eIf an attacker is able to inject maliciously corrupted NTFS Volumes they can cause a crash and a Denial of Service.\u003c/div\u003e"
            }
          ],
          "value": "Velociraptor\u0027s NTFS parsing library mishandles several out of bound and memory exhaustion bugs which may be triggered by maliciously crafted NTFS images.\n\nTypically Velociraptor\u0027s NTFS parser is used on live NTFS filesystems, limiting the opportunity of attackers corrupting the filesystem. However, in some applications (e.g.\u00a0 dead disk forensics https://docs.velociraptor.app/docs/forensic/deaddisk/ ) Velociraptor may be used on untrusted NTFS image files.\u00a0\n\nIf an attacker is able to inject maliciously corrupted NTFS Volumes they can cause a crash and a Denial of Service."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-540",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-540 Overread Buffers"
            }
          ]
        },
        {
          "capecId": "CAPEC-130",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-130 Excessive Allocation"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.2,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
              "description": "CWE-125 Out-of-bounds read",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-789",
              "description": "CWE-789 Memory allocation with excessive size value",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-369",
              "description": "CWE-369 Divide by zero",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-11T14:47:13.859Z",
        "orgId": "9974b330-7714-4307-a722-5648477acda7",
        "shortName": "rapid7"
      },
      "references": [
        {
          "url": "http://docs.velociraptor.app/announcements/advisories/cve-2026-17535/"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Velociraptor Multiple Crashes in NTFS Parser when applied to invalid NTFS Volumes",
      "workarounds": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "The vulnerability results in a crash or memory exhaustion.\u0026nbsp;"
            }
          ],
          "value": "The vulnerability results in a crash or memory exhaustion."
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 1.0.4"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9974b330-7714-4307-a722-5648477acda7",
    "assignerShortName": "rapid7",
    "cveId": "CVE-2026-17535",
    "datePublished": "2026-08-11T14:47:13.859Z",
    "dateReserved": "2026-07-27T09:21:41.141Z",
    "dateUpdated": "2026-08-11T19:43:42.930Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-17535",
      "date": "2026-11-11",
      "epss": "0.00157",
      "percentile": "0.04961"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Velociraptor",
                "repo": "https://github.com/Velocidex/velociraptor/",
                "vendor": "Rapid7",
                "versions": [
                  {
                    "lessThan": "0.77.2",
                    "status": "affected",
                    "version": "0",
                    "versionType": "semver"
                  }
                ]
              }
            ],
            "source": "cve@rapid7.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Velociraptor\u0027s NTFS parsing library mishandles several out of bound and memory exhaustion bugs which may be triggered by maliciously crafted NTFS images.\n\nTypically Velociraptor\u0027s NTFS parser is used on live NTFS filesystems, limiting the opportunity of attackers corrupting the filesystem. However, in some applications (e.g.\u00a0 dead disk forensics https://docs.velociraptor.app/docs/forensic/deaddisk/ ) Velociraptor may be used on untrusted NTFS image files.\u00a0\n\nIf an attacker is able to inject maliciously corrupted NTFS Volumes they can cause a crash and a Denial of Service."
          },
          {
            "lang": "es",
            "value": "La biblioteca de an\u00e1lisis NTFS de Velociraptor maneja incorrectamente varios errores de desbordamiento de l\u00edmites y agotamiento de memoria que pueden ser activados por im\u00e1genes NTFS creadas con fines maliciosos.\n\nT\u00edpicamente, el analizador NTFS de Velociraptor se utiliza en sistemas de archivos NTFS en vivo, lo que limita la oportunidad de que los atacantes corrompan el sistema de archivos. Sin embargo, en algunas aplicaciones (por ejemplo, an\u00e1lisis forense de discos muertos https://docs.velociraptor.app/docs/forensic/deaddisk/ ), Velociraptor puede ser utilizado en archivos de imagen NTFS no confiables.\n\nSi un atacante es capaz de inyectar Vol\u00famenes NTFS corrompidos maliciosamente, pueden causar un fallo y una denegaci\u00f3n de servicio."
          }
        ],
        "id": "CVE-2026-17535",
        "lastModified": "2026-10-23T19:10:00.167",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 6.2,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 2.5,
              "impactScore": 3.6,
              "source": "cve@rapid7.com",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-17535",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-11T19:28:19.365550Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-08-11T15:17:27.927",
        "references": [
          {
            "source": "cve@rapid7.com",
            "url": "http://docs.velociraptor.app/announcements/advisories/cve-2026-17535/"
          }
        ],
        "sourceIdentifier": "cve@rapid7.com",
        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-125"
              },
              {
                "lang": "en",
                "value": "CWE-369"
              },
              {
                "lang": "en",
                "value": "CWE-789"
              }
            ],
            "source": "cve@rapid7.com",
            "type": "Secondary"
          }
        ]
      }
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-17535",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-08-11T19:28:19.365550Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-08-11T19:43:36.859Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Velociraptor",
              "repo": "https://github.com/Velocidex/velociraptor/",
              "vendor": "Rapid7",
              "versions": [
                {
                  "lessThan": "0.77.2",
                  "status": "affected",
                  "version": "0",
                  "versionType": "semver"
                }
              ]
            }
          ],
          "configurations": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "This vulnerability is exploitable when ingesting untrusted NTFS volumes and using Velociraptor to parse these in dead disk mode."
                }
              ],
              "value": "This vulnerability is exploitable when ingesting untrusted NTFS volumes and using Velociraptor to parse these in dead disk mode."
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "finder",
              "value": "Kris Kennaway (Datadog)"
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "\u003cp\u003eVelociraptor\u0027s NTFS parsing library mishandles several out of bound and memory exhaustion bugs which may be triggered by maliciously crafted NTFS images.\u003c/p\u003e\u003cdiv\u003eTypically Velociraptor\u0027s NTFS parser is used on live NTFS filesystems, limiting the opportunity of attackers corrupting the filesystem. However, in some applications (e.g.\u0026nbsp;\u003ca href=\"https://docs.velociraptor.app/docs/forensic/deaddisk/\"\u003edead disk forensics\u003c/a\u003e) Velociraptor may be used on untrusted NTFS image files.\u0026nbsp;\u003c/div\u003e\u003cdiv\u003eIf an attacker is able to inject maliciously corrupted NTFS Volumes they can cause a crash and a Denial of Service.\u003c/div\u003e"
                }
              ],
              "value": "Velociraptor\u0027s NTFS parsing library mishandles several out of bound and memory exhaustion bugs which may be triggered by maliciously crafted NTFS images.\n\nTypically Velociraptor\u0027s NTFS parser is used on live NTFS filesystems, limiting the opportunity of attackers corrupting the filesystem. However, in some applications (e.g.\u00a0 dead disk forensics https://docs.velociraptor.app/docs/forensic/deaddisk/ ) Velociraptor may be used on untrusted NTFS image files.\u00a0\n\nIf an attacker is able to inject maliciously corrupted NTFS Volumes they can cause a crash and a Denial of Service."
            }
          ],
          "impacts": [
            {
              "capecId": "CAPEC-540",
              "descriptions": [
                {
                  "lang": "en",
                  "value": "CAPEC-540 Overread Buffers"
                }
              ]
            },
            {
              "capecId": "CAPEC-130",
              "descriptions": [
                {
                  "lang": "en",
                  "value": "CAPEC-130 Excessive Allocation"
                }
              ]
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 6.2,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-125",
                  "description": "CWE-125 Out-of-bounds read",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            },
            {
              "descriptions": [
                {
                  "cweId": "CWE-789",
                  "description": "CWE-789 Memory allocation with excessive size value",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            },
            {
              "descriptions": [
                {
                  "cweId": "CWE-369",
                  "description": "CWE-369 Divide by zero",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-11T14:47:13.859Z",
            "orgId": "9974b330-7714-4307-a722-5648477acda7",
            "shortName": "rapid7"
          },
          "references": [
            {
              "url": "http://docs.velociraptor.app/announcements/advisories/cve-2026-17535/"
            }
          ],
          "source": {
            "discovery": "UNKNOWN"
          },
          "title": "Velociraptor Multiple Crashes in NTFS Parser when applied to invalid NTFS Volumes",
          "workarounds": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "The vulnerability results in a crash or memory exhaustion.\u0026nbsp;"
                }
              ],
              "value": "The vulnerability results in a crash or memory exhaustion."
            }
          ],
          "x_generator": {
            "engine": "Vulnogram 1.0.4"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "9974b330-7714-4307-a722-5648477acda7",
        "assignerShortName": "rapid7",
        "cveId": "CVE-2026-17535",
        "datePublished": "2026-08-11T14:47:13.859Z",
        "dateReserved": "2026-07-27T09:21:41.141Z",
        "dateUpdated": "2026-08-11T19:43:42.930Z",
        "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.