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CVE-2026-93129

Status: ReceivedUnscored—

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

platform/x86: dell-wmi-base: Fix handling of ultra performance key

The commit message of commit 5fbd827eb9c2 ("platform/x86: dell-wmi: Recognise or support new switches") states that the ultra performance key contains additional data after the type and code fields. The event data passed to dell_wmi_process_key() is already parsed, so "buffer" already starts after those two fields.

Use the correct index for accessing the first data field to avoid a potential buffer overread.

CVSS

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

Exploitation probability (EPSS)

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

Raw JSON (NVD)

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{
  "id": "CVE-2026-93129",
  "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": "5fbd827eb9c224c33a5f263ee543a75fe957faa3",
              "lessThan": "392c19faec6bf4cb72fb02322e2a61e198dd8f72",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "5fbd827eb9c224c33a5f263ee543a75fe957faa3",
              "lessThan": "adfd6846bea13667ff28f8aaf00c32fbd69825ab",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/platform/x86/dell/dell-wmi-base.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.16"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.16",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/platform/x86/dell/dell-wmi-base.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-17T17:18:07.693",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/392c19faec6bf4cb72fb02322e2a61e198dd8f72",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/adfd6846bea13667ff28f8aaf00c32fbd69825ab",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: dell-wmi-base: Fix handling of ultra performance key\n\nThe commit message of commit 5fbd827eb9c2 (\"platform/x86: dell-wmi: Recognise or support new switches\")\nstates that the ultra performance key contains additional data\nafter the type and code fields. The event data passed to\ndell_wmi_process_key() is already parsed, so \"buffer\" already\nstarts after those two fields.\n\nUse the correct index for accessing the first data field to avoid\na potential buffer overread."
    }
  ],
  "lastModified": "2026-09-17T17:18:07.693",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}