{
  "fix": "RHSA-2025:8203",
  "url": "https://patchblox.com/security/fix/linux/rhsa-2025-8203",
  "summary": "RHSA-2025:8203, released May 27, 2025, fixes 4 CVEs in thunderbird (version 0:128.10.1-1.el9_6). None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "linux",
  "type": "advisory",
  "title": "thunderbird security update",
  "released": "2025-05-27T00:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2025-3909, high severity",
  "supported": true,
  "cveCount": 4,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.0047,
  "maxCvss": 8.8,
  "vendorAdvisory": "https://access.redhat.com/errata/RHSA-2025:8203",
  "appliesTo": [
    {
      "product": "thunderbird",
      "productUrl": "https://patchblox.com/security/product/linux/thunderbird",
      "release": "RHEL 9",
      "fixedVersion": "0:128.10.1-1.el9_6",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2025-3909",
      "url": "https://patchblox.com/security/cve/CVE-2025-3909",
      "title": "JavaScript Execution via Spoofed PDF Attachment and file:/// Link",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.0047,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-3875",
      "url": "https://patchblox.com/security/cve/CVE-2025-3875",
      "title": "Sender Spoofing via Malformed From Header in Thunderbird",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00396,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-3932",
      "url": "https://patchblox.com/security/cve/CVE-2025-3932",
      "title": "Tracking Links in Attachments Bypassed Remote Content Blocking",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "epss": 0.00388,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-3877",
      "url": "https://patchblox.com/security/cve/CVE-2025-3877",
      "title": "thunderbird: Rejected reason: This CVE was marked as fixed, but due to other code landing - was not actually fixed",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.8,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T12:40:37Z"
}