{
  "fix": "libjavascriptcoregtk-bin 2.50.1-0ubuntu0.24.04.1",
  "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libjavascriptcoregtk-bin-2.50.1-0ubuntu0.24.04.1",
  "summary": "libjavascriptcoregtk-bin 2.50.1-0ubuntu0.24.04.1, released November 3, 2025, fixes 4 CVEs in libjavascriptcoregtk-bin. One of them is being exploited (CVE-2025-31277); 1 on CISA KEV. Patch Radar priority: Patch now.",
  "platform": "linux",
  "type": "package",
  "title": "libjavascriptcoregtk-bin 2.50.1-0ubuntu0.24.04.1 for Ubuntu 24.04.5 LTS (noble)",
  "released": "2025-11-03T18:15:00Z",
  "priority": "Patch now",
  "priorityTier": 1,
  "priorityReason": "Closes CVE-2025-31277, exploited (CISA KEV)",
  "supported": true,
  "cveCount": 4,
  "exploitedCveCount": 1,
  "kevCveCount": 1,
  "ransomwareCveCount": 0,
  "maxEpss": 0.01678,
  "maxCvss": 9.8,
  "appliesTo": [
    {
      "product": "libjavascriptcoregtk-bin",
      "productUrl": "https://patchblox.com/security/product/linux/libjavascriptcoregtk-bin",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2.50.1-0ubuntu0.24.04.1",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2025-31277",
      "url": "https://patchblox.com/security/cve/CVE-2025-31277",
      "title": "webkit2gtk3: processing maliciously crafted web content may lead to memory corruption (bsc#1259948).",
      "priority": "Patch now",
      "severity": "High",
      "cvss": 8.8,
      "epss": 0.01678,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-43343",
      "url": "https://patchblox.com/security/cve/CVE-2025-43343",
      "title": "WebKit: Processing maliciously crafted web content may lead to an unexpected process crash",
      "priority": "Urgent",
      "severity": "CRITICAL",
      "cvss": 9.8,
      "epss": 0.00804,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-31223",
      "url": "https://patchblox.com/security/cve/CVE-2025-31223",
      "title": "WebKit: Processing maliciously crafted web content may lead to memory corruption",
      "priority": "High",
      "severity": "HIGH",
      "cvss": 8.8,
      "epss": 0.006,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-43419",
      "url": "https://patchblox.com/security/cve/CVE-2025-43419",
      "title": "WebKit: Processing maliciously crafted web content may lead to memory corruption",
      "priority": "High",
      "severity": "HIGH",
      "cvss": 8.8,
      "epss": 0.00404,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-12T13:55:20Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}