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CVE-2026-96956

Full vulnerability record from the local CVENow database.

Description

Stack-based buffer overflow in SQL Server allows an authorized attacker to elevate privileges over a network.

Severity
HIGH
CVSS score
8.0 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-10-13 21:20:14.737000
Last modified
2026-11-02 18:49:15.997000
View original CVE JSON
{
  "id": "CVE-2026-96956",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-13T21:20:14.737",
  "lastModified": "2026-11-02T18:49:15.997",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Stack-based buffer overflow in SQL Server allows an authorized attacker to elevate privileges over a network."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": "Microsoft SQL Server 2017 (GDR)",
          "platforms": [
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          ],
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            }
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        },
        {
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          "product": "Microsoft SQL Server 2017 for x64-based Systems (CU31)",
          "platforms": [
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          ],
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              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft SQL Server 2019 (GDR)",
          "platforms": [
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          ],
          "versions": [
            {
              "version": "15.0.0",
              "lessThan": "15.0.2200.2",
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            }
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        },
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          "product": "Microsoft SQL Server 2019 for x64-based Systems (CU32)",
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          ],
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        },
        {
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          ],
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    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H",
          "baseScore": 8.0,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "HIGH",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.3,
        "impactScore": 6.0
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-15T00:00:00+00:00",
          "id": "CVE-2026-96956",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-121"
        }
      ]
    }
  ],
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  "references": [
    {
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96956",
      "source": "[email protected]",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ]
    }
  ]
}