{
  "fix": "mupdf 1.16.1\u002Bds1-1ubuntu1\u002Besm1",
  "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-mupdf-1.16.1-ds1-1ubuntu1-esm1",
  "summary": "mupdf 1.16.1\u002Bds1-1ubuntu1\u002Besm1, released August 22, 2023, fixes 4 CVEs in mupdf. None of them is reported as exploited. Patch Radar priority: Routine. The product is no longer supported.",
  "platform": "linux",
  "type": "package",
  "title": "mupdf 1.16.1\u002Bds1-1ubuntu1\u002Besm1 for Ubuntu 20.04.3 LTS (focal)",
  "released": "2023-08-22T12:16:00Z",
  "priority": "Routine",
  "priorityTier": 4,
  "priorityReason": "Closes 4 CVEs, none high severity",
  "supported": false,
  "cveCount": 4,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.50234,
  "maxCvss": 5.5,
  "appliesTo": [
    {
      "product": "mupdf",
      "productUrl": "https://patchblox.com/security/product/linux/mupdf",
      "release": "Ubuntu 20.04.3 LTS (focal)",
      "fixedVersion": "1.16.1\u002Bds1-1ubuntu1\u002Besm1",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2021-3407",
      "url": "https://patchblox.com/security/cve/CVE-2021-3407",
      "title": "mupdf: A flaw was found in mupdf 1.18.0",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.50234,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-37220",
      "url": "https://patchblox.com/security/cve/CVE-2021-37220",
      "title": "mupdf: MuPDF through 1.18.1 has an out-of-bounds write because the cached color converter does not properly consider the max...",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.01331,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-21896",
      "url": "https://patchblox.com/security/cve/CVE-2020-21896",
      "title": "mupdf: mupdf - security update",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 5.5,
      "epss": 0.00507,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-26683",
      "url": "https://patchblox.com/security/cve/CVE-2020-26683",
      "title": "mupdf: A memory leak issue discovered in /pdf/pdf-font-add.c in Artifex Software MuPDF 1.17.0 allows attackers to obtain sen...",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 5.5,
      "epss": 0.00306,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-14T20:11:19Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}