{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "b453872c35cfcbdbf5a794737817f7d4e7b1b579"
            },
            {
              "fixed": "062840bdc9ee06169b3c371bf66711f1d7ec0bf4"
            },
            {
              "fixed": "c54b643e9a0936d038921c547736574fd7382cea"
            },
            {
              "fixed": "74ed3669f26803b1761c1f55403062bea44c3466"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.14"
            },
            {
              "fixed": "6.12.111"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.53"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93803.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: libipw: fix key index receive bound checks\n\nlibipw_rx() reads skb-\u003edata[hdrlen + 3] to extract the WEP key index in\nboth the software-decrypt key selection path and the hardware-decrypted\nIV/ICV strip path. In both places the existing guard only checks\nskb-\u003elen \u003e= hdrlen + 3, which proves bytes up to hdrlen + 2 but not the\nbyte at hdrlen + 3.\n\nRequire hdrlen + 4 bytes before reading that item in both paths. This is\na local source-boundary check only; it does not change the key index\nsemantics.",
  "id": "CVE-2026-93803",
  "modified": "2026-09-27T03:30:14.792915114Z",
  "published": "2026-09-24T16:02:37.324Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/062840bdc9ee06169b3c371bf66711f1d7ec0bf4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/74ed3669f26803b1761c1f55403062bea44c3466"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c54b643e9a0936d038921c547736574fd7382cea"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93803.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93803"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "wifi: libipw: fix key index receive bound checks"
}