{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2.8.2"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8abe276c392f547120c595134497153cc6b95919"
            }
          ],
          "repo": "https://github.com/nxp-mcuxpresso/mcux-sdk",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "NXP MCUXpresso SDK versions prior to 2.8.2 are vulnerable to integer overflow in SDK_Malloc function, which could allow to access memory locations outside the bounds of a specified array, leading to unexpected behavior such segmentation fault when assigning a particular block of memory from the heap via malloc.",
  "id": "CVE-2021-27421",
  "modified": "2026-03-13T21:53:15.715773528Z",
  "published": "2022-05-03T21:15:08.307Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://mcuxpresso.nxp.com/en/welcome"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}