{
  "product": "Mozilla Thunderbird (th)",
  "url": "https://patchblox.com/security/product/windows-app/mozilla-thunderbird-th",
  "summary": "The latest version of Mozilla Thunderbird (th) is 159.0, released October 27, 2026. Patch Radar has 40 security fixes for Mozilla Thunderbird (th), closing 721 CVEs, 1 of which is being exploited. The newest security fix is Mozilla Thunderbird (th) 157.0, released September 30, 2026. Version 159.0 adds no new CVE fixes and includes all of them.",
  "platform": "windows-app",
  "vendor": "Mozilla",
  "supported": true,
  "latestVersion": "159.0",
  "latestReleased": "2026-10-27T00:00:00Z",
  "latestIncludesAllFixes": true,
  "fixCount": 40,
  "cveCount": 721,
  "exploitedCveCount": 1,
  "unfixedCveCount": 0,
  "fixes": [
    {
      "fix": "Mozilla Thunderbird (th) 157.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-157.0",
      "released": "2026-09-30T00:00:00Z",
      "fixedVersion": "157.0",
      "priority": "Urgent",
      "cveCount": 76,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 156.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-156.0",
      "released": "2026-09-15T00:00:00Z",
      "fixedVersion": "156.0",
      "priority": "Urgent",
      "cveCount": 75,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 155.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-155.0",
      "released": "2026-09-01T00:00:00Z",
      "fixedVersion": "155.0",
      "priority": "Urgent",
      "cveCount": 31,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 154.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-154.0",
      "released": "2026-08-18T00:00:00Z",
      "fixedVersion": "154.0",
      "priority": "Urgent",
      "cveCount": 56,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 153.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-153.0",
      "released": "2026-07-21T00:00:00Z",
      "fixedVersion": "153.0",
      "priority": "Urgent",
      "cveCount": 53,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 152.0.1",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-152.0.1",
      "released": "2026-07-01T00:00:00Z",
      "fixedVersion": "152.0.1",
      "priority": "Routine",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 152.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-152.0",
      "released": "2026-06-16T00:00:00Z",
      "fixedVersion": "152.0",
      "priority": "Urgent",
      "cveCount": 40,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 151.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-151.0",
      "released": "2026-05-19T00:00:00Z",
      "fixedVersion": "151.0",
      "priority": "Urgent",
      "cveCount": 25,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 150.0.2",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-150.0.2",
      "released": "2026-05-08T00:00:00Z",
      "fixedVersion": "150.0.2",
      "priority": "High",
      "cveCount": 3,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 150.0.1",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-150.0.1",
      "released": "2026-04-30T00:00:00Z",
      "fixedVersion": "150.0.1",
      "priority": "High",
      "cveCount": 4,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 150.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-150.0",
      "released": "2026-04-21T00:00:00Z",
      "fixedVersion": "150.0",
      "priority": "Urgent",
      "cveCount": 16,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 149.0.2",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-149.0.2",
      "released": "2026-04-07T00:00:00Z",
      "fixedVersion": "149.0.2",
      "priority": "Urgent",
      "cveCount": 3,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 149.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-149.0",
      "released": "2026-03-24T00:00:00Z",
      "fixedVersion": "149.0",
      "priority": "Urgent",
      "cveCount": 14,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 148.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-148.0",
      "released": "2026-02-24T00:00:00Z",
      "fixedVersion": "148.0",
      "priority": "Urgent",
      "cveCount": 50,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 147.0.2",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-147.0.2",
      "released": "2026-02-16T00:00:00Z",
      "fixedVersion": "147.0.2",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 147.0.1",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-147.0.1",
      "released": "2026-01-28T00:00:00Z",
      "fixedVersion": "147.0.1",
      "priority": "Routine",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 147.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-147.0",
      "released": "2026-01-13T00:00:00Z",
      "fixedVersion": "147.0",
      "priority": "Urgent",
      "cveCount": 16,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 146.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-146.0",
      "released": "2025-12-10T00:00:00Z",
      "fixedVersion": "146.0",
      "priority": "Urgent",
      "cveCount": 13,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 144.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-144.0",
      "released": "2025-10-14T00:00:00Z",
      "fixedVersion": "144.0",
      "priority": "Urgent",
      "cveCount": 10,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 143.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-143.0",
      "released": "2025-09-16T00:00:00Z",
      "fixedVersion": "143.0",
      "priority": "High",
      "cveCount": 10,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 142.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-142.0",
      "released": "2025-08-19T00:00:00Z",
      "fixedVersion": "142.0",
      "priority": "Urgent",
      "cveCount": 7,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 141.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-141.0",
      "released": "2025-07-22T00:00:00Z",
      "fixedVersion": "141.0",
      "priority": "Urgent",
      "cveCount": 53,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 140.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-140.0",
      "released": "2025-07-02T00:00:00Z",
      "fixedVersion": "140.0",
      "priority": "High",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 139.0.2",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-139.0.2",
      "released": "2025-06-10T00:00:00Z",
      "fixedVersion": "139.0.2",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 139.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-139.0",
      "released": "2025-05-27T00:00:00Z",
      "fixedVersion": "139.0",
      "priority": "High",
      "cveCount": 3,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 138.0.2",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-138.0.2",
      "released": "2025-05-20T00:00:00Z",
      "fixedVersion": "138.0.2",
      "priority": "High",
      "cveCount": 2,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 138.0.1",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-138.0.1",
      "released": "2025-05-13T00:00:00Z",
      "fixedVersion": "138.0.1",
      "priority": "High",
      "cveCount": 3,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 138.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-138.0",
      "released": "2025-04-29T00:00:00Z",
      "fixedVersion": "138.0",
      "priority": "High",
      "cveCount": 11,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 137.0.2",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-137.0.2",
      "released": "2025-04-15T00:00:00Z",
      "fixedVersion": "137.0.2",
      "priority": "High",
      "cveCount": 3,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 137.0.1",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-137.0.1",
      "released": "2025-04-04T00:00:00Z",
      "fixedVersion": "137.0.1",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 137.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-137.0",
      "released": "2025-04-01T00:00:00Z",
      "fixedVersion": "137.0",
      "priority": "High",
      "cveCount": 5,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 136.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-136.0",
      "released": "2025-03-04T00:00:00Z",
      "fixedVersion": "136.0",
      "priority": "Patch now",
      "cveCount": 87,
      "exploitedCveCount": 1
    },
    {
      "fix": "Mozilla Thunderbird (th) 115.14.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-115.14.0",
      "released": "2024-08-06T00:00:00Z",
      "fixedVersion": "115.14.0",
      "priority": "High",
      "cveCount": 7,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 115.13.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-115.13.0",
      "released": "2024-07-16T00:00:00Z",
      "fixedVersion": "115.13.0",
      "priority": "High",
      "cveCount": 5,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 115.12.1",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-115.12.1",
      "released": "2024-06-19T00:00:00Z",
      "fixedVersion": "115.12.1",
      "priority": "High",
      "cveCount": 8,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 115.11.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-115.11.0",
      "released": "2024-05-15T00:00:00Z",
      "fixedVersion": "115.11.0",
      "priority": "High",
      "cveCount": 6,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 115.10.1",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-115.10.1",
      "released": "2024-04-18T00:00:00Z",
      "fixedVersion": "115.10.1",
      "priority": "Routine",
      "cveCount": 1,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 115.10.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-115.10.0",
      "released": "2024-04-16T00:00:00Z",
      "fixedVersion": "115.10.0",
      "priority": "Urgent",
      "cveCount": 7,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 115.9.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-115.9.0",
      "released": "2024-03-19T00:00:00Z",
      "fixedVersion": "115.9.0",
      "priority": "Urgent",
      "cveCount": 9,
      "exploitedCveCount": 0
    },
    {
      "fix": "Mozilla Thunderbird (th) 115.8.1",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.thunderbird.th-115.8.1",
      "released": "2024-03-05T00:00:00Z",
      "fixedVersion": "115.8.1",
      "priority": "High",
      "cveCount": 1,
      "exploitedCveCount": 0
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T19:38:12Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}