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CVE-2026-63963

Estado: Pendiente de análisisSin puntuar—

In the Linux kernel, the following vulnerability has been resolved:

usb: typec: tcpm: validate VDO count in Discover Identity ACK handlers

Properly validate the count passed from a device when calling svdm_consume_identity() or svdm_consume_identity_sop_prime() as the device-controlled value could index off of the static arrays, which could leak data.

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-63963",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "f0690a25a140b853b1842fa80faf828601bb47e8",
              "lessThan": "569f7971542eb10025d8a0989b83f28a29d8ba20",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f0690a25a140b853b1842fa80faf828601bb47e8",
              "lessThan": "f9d787fbe83127105e42088cca40e5118db0d810",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f0690a25a140b853b1842fa80faf828601bb47e8",
              "lessThan": "ed8649f3822e211d025bcab5158af6f8a38c8705",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f0690a25a140b853b1842fa80faf828601bb47e8",
              "lessThan": "8fbc349e8383125dd2d8de1c1e926279d398ab17",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/usb/typec/tcpm/tcpm.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.12"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "4.12",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.12.93",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.35",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.0.12",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/usb/typec/tcpm/tcpm.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-07-19T16:17:15.270",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/569f7971542eb10025d8a0989b83f28a29d8ba20",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8fbc349e8383125dd2d8de1c1e926279d398ab17",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ed8649f3822e211d025bcab5158af6f8a38c8705",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f9d787fbe83127105e42088cca40e5118db0d810",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    }
  ],
  "lastModified": "2026-07-30T14:51:11.223",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}