CVE-2026-46569 (GCVE-0-2026-46569)

Vulnerability from cvelistv5 – Published: 2026-10-07 00:00 – Updated: 2026-10-07 14:01
VLAI
Summary
In NTFS-3G before 2026.7.7, a heap buffer overflow exists in ntfs_ib_copy_tail(), in libntfs-3g/index.c, that allows an attacker to corrupt heap memory in the SUID-root ntfs-3g binary by crafting a malicious NTFS image. The overflow is triggered by extending a directory, e.g., by creating a file.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In NTFS-3G before 2026.7.7, a heap buffer overflow exists in ntfs_ib_copy_tail(), in libntfs-3g/index.c, that allows an attacker to corrupt heap memory in the SUID-root ntfs-3g binary by crafting a malicious NTFS image. The overflow is triggered by extending a directory, e.g., by creating a file."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-07T14:01:43.066Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/tuxera/ntfs-3g/releases#release-2026.7.7"
        },
        {
          "url": "https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-xxv8-9r24-hcj9"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2026-46569",
    "datePublished": "2026-10-07T00:00:00.000Z",
    "dateReserved": "2026-05-15T00:00:00.000Z",
    "dateUpdated": "2026-10-07T14:01:43.066Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "n/a",
                "vendor": "n/a",
                "versions": [
                  {
                    "status": "affected",
                    "version": "n/a"
                  }
                ]
              }
            ],
            "source": "cve@mitre.org"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In NTFS-3G before 2026.7.7, a heap buffer overflow exists in ntfs_ib_copy_tail(), in libntfs-3g/index.c, that allows an attacker to corrupt heap memory in the SUID-root ntfs-3g binary by crafting a malicious NTFS image. The overflow is triggered by extending a directory, e.g., by creating a file."
          }
        ],
        "id": "CVE-2026-46569",
        "lastModified": "2026-10-07T14:47:21.140",
        "metrics": {},
        "published": "2026-10-07T14:17:10.833",
        "references": [
          {
            "source": "cve@mitre.org",
            "url": "https://github.com/tuxera/ntfs-3g/releases#release-2026.7.7"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://github.com/tuxera/ntfs-3g/security/advisories/GHSA-xxv8-9r24-hcj9"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Undergoing Analysis"
      }
    },
    "redhat_vex": {
      "current_release_date": "2026-10-07T19:28:24+00:00",
      "cve": "CVE-2026-46569",
      "id": "CVE-2026-46569",
      "initial_release_date": "2026-10-07T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "ntfs-3g: ntfs-3g: Privilege escalation via heap-based buffer overflow in ntfs_ib_copy_tail()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46569.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.



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.