{
  "cveId": "CVE-2020-27801",
  "url": "https://patchblox.com/security/cve/CVE-2020-27801",
  "summary": "CVE-2020-27801 is fixed in upx-ucl on 1 platform, first by DEBIAN-CVE-2020-27801, released August 25, 2022. It is not reported as exploited. Patch Radar priority: High.",
  "title": "upx-ucl: A heap-based buffer over-read was discovered in the get_le64 function in bele.h in UPX 4.0.0 via a crafted Mach-O file.",
  "description": "A heap-based buffer over-read was discovered in the get_le64 function in bele.h in UPX 4.0.0 via a crafted Mach-O file.",
  "published": "2022-08-25T20:15:08Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
  "epss": 0.00379,
  "epssPercentile": 0.32154,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "upx-ucl",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "4.2.2-1",
      "fix": "DEBIAN-CVE-2020-27801",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2020-27801",
      "released": "2022-08-25T20:15:08Z"
    },
    {
      "platform": "linux",
      "product": "upx-ucl",
      "release": "Debian 14",
      "fixedVersion": "4.2.2-1",
      "fix": "DEBIAN-CVE-2020-27801",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2020-27801",
      "released": "2022-08-25T20:15:08Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}