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CVE-2026-98730

Status: ReceivedUnscored—
Severity—Unscored
Exploitation probability0.17 %higher than 6% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

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

Bluetooth: btintel_pcie: reject oversized TX packets in send_frame()

btintel_pcie_send_frame() eventually copies skb->data into a fixed BTINTEL_PCIE_BUFFER_SIZE (4096) DMA buffer via memcpy() in btintel_pcie_prepare_tx(), with a 4-byte PCIe type header prepended. A user-space process with HCI_CHANNEL_USER access can inject an oversized packet and overflow the buffer.

Reject packets larger than BTINTEL_PCIE_BUFFER_SIZE - BTINTEL_PCIE_HCI_TYPE_LEN on entry.

CVSS

NVD hasn't assigned a CVSS score to this CVE (common since the April 2026 policy change).

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
0.17 %
Percentile among all scored CVEs
6
Score date
10/20/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Linux — Linux KernelAI

References

Show 4 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2026-98730",
  "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": "6e65a09f927566f257322358d429b267548473eb",
              "lessThan": "3d6ba6be9bef13edcd4ad74f7cfdd0c34db4d2bc",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "6e65a09f927566f257322358d429b267548473eb",
              "lessThan": "84df222de86eabed543361025ed54ce838c0b573",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "6e65a09f927566f257322358d429b267548473eb",
              "lessThan": "9806a748f9ab223b733624367b6ddda77fb9450e",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "6e65a09f927566f257322358d429b267548473eb",
              "lessThan": "f771f96557a4d953a7e4d045870547271e36e819",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/bluetooth/btintel_pcie.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.10"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.10",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.12.113",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.56",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.10",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/bluetooth/btintel_pcie.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-10-18T16:17:26.623",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/3d6ba6be9bef13edcd4ad74f7cfdd0c34db4d2bc",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/84df222de86eabed543361025ed54ce838c0b573",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9806a748f9ab223b733624367b6ddda77fb9450e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f771f96557a4d953a7e4d045870547271e36e819",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btintel_pcie: reject oversized TX packets in send_frame()\n\nbtintel_pcie_send_frame() eventually copies skb->data into a fixed\nBTINTEL_PCIE_BUFFER_SIZE (4096) DMA buffer via memcpy() in\nbtintel_pcie_prepare_tx(), with a 4-byte PCIe type header prepended.\nA user-space process with HCI_CHANNEL_USER access can inject an\noversized packet and overflow the buffer.\n\nReject packets larger than\nBTINTEL_PCIE_BUFFER_SIZE - BTINTEL_PCIE_HCI_TYPE_LEN on entry."
    }
  ],
  "lastModified": "2026-10-19T10:19:37.140",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}