{
  "cveId": "CVE-2026-63523",
  "url": "https://patchblox.com/security/cve/CVE-2026-63523",
  "summary": "CVE-2026-63523 is fixed in 3 products on 1 platform, first by KB5123301, released September 8, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "Skype for Business Spoofing Vulnerability",
  "description": "\u003Cp\u003EImproper neutralization of input during web page generation (\u0027cross-site scripting\u0027) in Skype for Business allows an unauthorized attacker to perform spoofing over a network.\u003C/p\u003E",
  "published": "2026-09-08T07:00:00Z",
  "severity": "Important",
  "cvss": 6.5,
  "cwe": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
  "epss": 0.00553,
  "epssPercentile": 0.46468,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "exploitabilityAssessment": "Exploitation Less Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-63523",
  "fixes": [
    {
      "platform": "microsoft",
      "product": "Skype for Business Server 2015 CU13",
      "fixedVersion": "",
      "fix": "KB5123301",
      "url": "https://patchblox.com/security/fix/microsoft/kb5123301",
      "released": "2026-09-08T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Skype for Business Server 2019 CU8",
      "fixedVersion": "",
      "fix": "KB5123300",
      "url": "https://patchblox.com/security/fix/microsoft/kb5123300",
      "released": "2026-09-08T07:00:00Z"
    },
    {
      "platform": "microsoft",
      "product": "Skype for Business Server Subscription Edition CU1",
      "fixedVersion": "",
      "fix": "KB5123287",
      "url": "https://patchblox.com/security/fix/microsoft/kb5123287",
      "released": "2026-09-08T07:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}