{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "4.0.0"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "69ca635c4c0ba474e9ca583dbb42e3d028c4533a"
            }
          ],
          "repo": "https://github.com/upx/upx",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "A heap-based buffer over-read was discovered in the acc_ua_get_be32 function in miniacc.h in UPX 4.0.0 via a crafted Mach-O file.",
  "id": "CVE-2020-27799",
  "modified": "2026-03-13T21:53:04.735449962Z",
  "published": "2022-08-25T20:15:08.630Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://github.com/upx/upx/issues/391"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}