{
  "fix": "thunderbird 1:102.15.1\u002Bbuild1-0ubuntu0.22.04.1",
  "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-thunderbird-1-102.15.1-build1-0ubuntu0.22.04.1",
  "summary": "thunderbird 1:102.15.1\u002Bbuild1-0ubuntu0.22.04.1, released September 12, 2023, fixes 6 CVEs in thunderbird. One of them is being exploited (CVE-2023-4863); 1 on CISA KEV. Patch Radar priority: Patch now.",
  "platform": "linux",
  "type": "package",
  "title": "thunderbird 1:102.15.1\u002Bbuild1-0ubuntu0.22.04.1 for Ubuntu 22.04.1 LTS (jammy)",
  "released": "2023-09-12T08:15:00Z",
  "priority": "Patch now",
  "priorityTier": 1,
  "priorityReason": "Closes CVE-2023-4863, exploited (CISA KEV)",
  "supported": true,
  "cveCount": 6,
  "exploitedCveCount": 1,
  "kevCveCount": 1,
  "ransomwareCveCount": 0,
  "maxEpss": 0.99979,
  "maxCvss": 9.6,
  "appliesTo": [
    {
      "product": "thunderbird",
      "productUrl": "https://patchblox.com/security/product/linux/thunderbird",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1:102.15.1\u002Bbuild1-0ubuntu0.22.04.1",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2023-4863",
      "url": "https://patchblox.com/security/cve/CVE-2023-4863",
      "title": "Chromium: CVE-2023-4863 Heap buffer overflow in WebP",
      "priority": "Patch now",
      "severity": "high",
      "cvss": 9.6,
      "epss": 0.99979,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": true
    },
    {
      "cveId": "CVE-2023-4584",
      "url": "https://patchblox.com/security/cve/CVE-2023-4584",
      "title": "Memory safety bugs fixed in Firefox 117, Firefox ESR 102.15, Firefox ESR 115.2, Thunderbird 102.15, and Thunderbird 115.2",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.8,
      "epss": 0.00804,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-4574",
      "url": "https://patchblox.com/security/cve/CVE-2023-4574",
      "title": "Memory corruption in IPC ColorPickerShownCallback",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.8,
      "epss": 0.00663,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-4575",
      "url": "https://patchblox.com/security/cve/CVE-2023-4575",
      "title": "Memory corruption in IPC FilePickerShownCallback",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.8,
      "epss": 0.00657,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-4573",
      "url": "https://patchblox.com/security/cve/CVE-2023-4573",
      "title": "Memory corruption in IPC CanvasTranslator",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.8,
      "epss": 0.00632,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-4581",
      "url": "https://patchblox.com/security/cve/CVE-2023-4581",
      "title": "XLL file extensions were downloadable without warnings",
      "priority": "High",
      "severity": "IMPORTANT",
      "cvss": 8.8,
      "epss": 0.00574,
      "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"
  }
}