{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "f0690a25a140b853b1842fa80faf828601bb47e8"
            },
            {
              "fixed": "569f7971542eb10025d8a0989b83f28a29d8ba20"
            },
            {
              "fixed": "f9d787fbe83127105e42088cca40e5118db0d810"
            },
            {
              "fixed": "ed8649f3822e211d025bcab5158af6f8a38c8705"
            },
            {
              "fixed": "8fbc349e8383125dd2d8de1c1e926279d398ab17"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.12.0"
            },
            {
              "fixed": "6.12.93"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.35"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63963.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: tcpm: validate VDO count in Discover Identity ACK handlers\n\nProperly validate the count passed from a device when calling\nsvdm_consume_identity() or svdm_consume_identity_sop_prime() as the\ndevice-controlled value could index off of the static arrays, which\ncould leak data.",
  "id": "CVE-2026-63963",
  "modified": "2026-07-22T05:30:04.772073851Z",
  "published": "2026-07-19T14:55:52.388Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/569f7971542eb10025d8a0989b83f28a29d8ba20"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8fbc349e8383125dd2d8de1c1e926279d398ab17"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ed8649f3822e211d025bcab5158af6f8a38c8705"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f9d787fbe83127105e42088cca40e5118db0d810"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63963.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63963"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "usb: typec: tcpm: validate VDO count in Discover Identity ACK handlers"
}