{
  "fix": "xvfb 2:21.1.12-1ubuntu1.4",
  "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-xvfb-2-21.1.12-1ubuntu1.4",
  "summary": "xvfb 2:21.1.12-1ubuntu1.4, released June 16, 2025, fixes 6 CVEs in xvfb. None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "linux",
  "type": "package",
  "title": "xvfb 2:21.1.12-1ubuntu1.4 for Ubuntu 24.04.5 LTS (noble)",
  "released": "2025-06-16T17:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2025-49177, high severity",
  "supported": true,
  "cveCount": 6,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00459,
  "maxCvss": 7.8,
  "appliesTo": [
    {
      "product": "xvfb",
      "productUrl": "https://patchblox.com/security/product/linux/xvfb",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2:21.1.12-1ubuntu1.4",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2025-49177",
      "url": "https://patchblox.com/security/cve/CVE-2025-49177",
      "title": "Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: data leak in xfixes extension\u0027s xfixessetclientdisconnectmode",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 7.8,
      "epss": 0.00459,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-49176",
      "url": "https://patchblox.com/security/cve/CVE-2025-49176",
      "title": "Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer overflow in big requests extension",
      "priority": "High",
      "severity": "Medium",
      "cvss": 7.8,
      "epss": 0.00382,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-49175",
      "url": "https://patchblox.com/security/cve/CVE-2025-49175",
      "title": "Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: out-of-bounds read in x rendering extension animated cursors",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 7.8,
      "epss": 0.00359,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-49179",
      "url": "https://patchblox.com/security/cve/CVE-2025-49179",
      "title": "Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer overflow in x record extension",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 7.8,
      "epss": 0.00355,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-49180",
      "url": "https://patchblox.com/security/cve/CVE-2025-49180",
      "title": "Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer overflow in x resize, rotate and reflect (randr) extension",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 7.8,
      "epss": 0.00347,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-49178",
      "url": "https://patchblox.com/security/cve/CVE-2025-49178",
      "title": "Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: unprocessed client request due to bytes to ignore",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 7.8,
      "epss": 0.00257,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-13T14:02:24Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}