CVE-2026-67390 Microsoft SQL Server Information Disclosure Vulnerability

{
  "id": "9541dceb41772b0c0ec8c000178740ee09c15a2975d00e705812da60d6485e98",
  "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-67390",
  "method": "llm",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-67390 Microsoft SQL Server Information Disclosure Vulnerability",
    "summary": "An authorized attacker may disclose information over a network through a buffer over-read in SQL Server.",
    "evidence": "Buffer over-read in SQL Server allows an authorized attacker to disclose information over a network.",
    "products": [
      {
        "name": {
          "value": "Microsoft SQL Server",
          "evidence": "CVE-2026-67390 Microsoft SQL Server Information Disclosure Vulnerability"
        },
        "prerequisites": [
          {
            "value": "authorized attacker",
            "evidence": "Buffer over-read in SQL Server allows an authorized attacker to disclose information over a network."
          }
        ],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "fixed_cves": [],
    "related_cves": [
      {
        "value": "CVE-2026-67390",
        "evidence": "CVE-2026-67390 Microsoft SQL Server Information Disclosure Vulnerability"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "official-microsoft-security-updates",
  "document_id": 26773,
  "published_at": "2026-09-08T14:00:00+00:00"
}