{
  "fix": "Mozilla Thunderbird (en-US) 78.10.2",
  "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird-78.10.2",
  "summary": "Mozilla Thunderbird (en-US) 78.10.2, released May 13, 2021, fixes 2 CVEs in Mozilla Thunderbird (en-US). None of them is reported as exploited. Patch Radar priority: Routine. The latest Mozilla Thunderbird (en-US) is 159.0, which also fixes every one of these CVEs.",
  "platform": "windows-app",
  "type": "app-version",
  "title": "Mozilla Thunderbird (en-US) 78.10.2",
  "released": "2021-05-13T00:00:00Z",
  "priority": "Routine",
  "priorityTier": 4,
  "priorityReason": "Closes 2 CVEs, none high severity",
  "supported": true,
  "cveCount": 2,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.0094,
  "maxCvss": 4.3,
  "appliesTo": [
    {
      "product": "Mozilla Thunderbird (en-US)",
      "productUrl": "https://patchblox.com/security/product/windows-app/mozilla-thunderbird-en-us",
      "fixedVersion": "78.10.2",
      "latestVersion": "159.0",
      "supported": true
    }
  ],
  "supersededBy": {
    "product": "Mozilla Thunderbird (en-US)",
    "latestVersion": "159.0",
    "productUrl": "https://patchblox.com/security/product/windows-app/mozilla-thunderbird-en-us"
  },
  "cves": [
    {
      "cveId": "CVE-2021-29957",
      "url": "https://patchblox.com/security/cve/CVE-2021-29957",
      "title": "Thunderbird and 1 other: If a MIME encoded email contains an OpenPGP inline signed or encrypted message part, but also contains\u2026",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 4.3,
      "epss": 0.0094,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-29956",
      "url": "https://patchblox.com/security/cve/CVE-2021-29956",
      "title": "Mozilla Thunderbird: OpenPGP secret keys that were imported using Thunderbird version 78.8.1 up to version 78.10.1 were stored\u2026",
      "priority": "Routine",
      "severity": "Important",
      "cvss": 4.3,
      "epss": 0.0081,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-10T07:50:38Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}