{
  "fix": "xorg-server-source 2:21.1.16-1ubuntu1",
  "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-xorg-server-source-2-21.1.16-1ubuntu1",
  "summary": "xorg-server-source 2:21.1.16-1ubuntu1, released February 25, 2025, fixes 8 CVEs in xorg-server-source. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.",
  "platform": "linux",
  "type": "package",
  "title": "xorg-server-source 2:21.1.16-1ubuntu1 for Ubuntu 25.10 (questing)",
  "released": "2025-02-25T07:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2025-26597, high severity",
  "supported": false,
  "cveCount": 8,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00444,
  "maxCvss": 7.8,
  "appliesTo": [
    {
      "product": "xorg-server-source",
      "productUrl": "https://patchblox.com/security/product/linux/xorg-server-source",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "2:21.1.16-1ubuntu1",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2025-26597",
      "url": "https://patchblox.com/security/cve/CVE-2025-26597",
      "title": "libX11: improper resizing of key actions when nGroups is 0 can lead to buffer overflows in",
      "priority": "High",
      "severity": "Medium",
      "cvss": 7.8,
      "epss": 0.00444,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-26595",
      "url": "https://patchblox.com/security/cve/CVE-2025-26595",
      "title": "libxkbfile: Fixed buffer overflow in XkbVModMaskText() (bsc#1237429).",
      "priority": "High",
      "severity": "Medium",
      "cvss": 7.8,
      "epss": 0.00438,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-26596",
      "url": "https://patchblox.com/security/cve/CVE-2025-26596",
      "title": "xorg-x11-server: Heap overflow in XkbWriteKeySyms() (bsc#1237430).",
      "priority": "High",
      "severity": "Medium",
      "cvss": 7.8,
      "epss": 0.00438,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-26598",
      "url": "https://patchblox.com/security/cve/CVE-2025-26598",
      "title": "xorg-x11-server: Out-of-bounds write in CreatePointerBarrierClient() (bsc#1237432).",
      "priority": "High",
      "severity": "Medium",
      "cvss": 7.8,
      "epss": 0.00405,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-26599",
      "url": "https://patchblox.com/security/cve/CVE-2025-26599",
      "title": "xwayland: Use of uninitialized pointer in compRedirectWindow() (bsc#1237433).",
      "priority": "High",
      "severity": "Medium",
      "cvss": 7.8,
      "epss": 0.00405,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-26594",
      "url": "https://patchblox.com/security/cve/CVE-2025-26594",
      "title": "xorg-x11-server: Use-after-free of the root cursor (bsc#1237427).",
      "priority": "High",
      "severity": "Medium",
      "cvss": 7.8,
      "epss": 0.00393,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-26600",
      "url": "https://patchblox.com/security/cve/CVE-2025-26600",
      "title": "xorg-x11-server: Use-after-free in PlayReleasedEvents() (bsc#1237434).",
      "priority": "High",
      "severity": "Medium",
      "cvss": 7.8,
      "epss": 0.00393,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-26601",
      "url": "https://patchblox.com/security/cve/CVE-2025-26601",
      "title": "xorg-x11-server: Use-after-free in SyncInitTrigger() (bsc#1237435).",
      "priority": "High",
      "severity": "Medium",
      "cvss": 7.8,
      "epss": 0.00393,
      "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"
  }
}